- 103FM County Sound
- 1382 in Ireland
- 1579 in Ireland
- 1583 in Ireland
- 1584 in Ireland
- 1590 in Ireland
- 1601 in Ireland
- 1609 in Ireland
- 1630 in Ireland
- 1859 in Ireland
- 1916-1921 Club
- 1923 in Northern Ireland
- 1924 in Northern Ireland
- 1925 in Northern Ireland
- 1926 in Northern Ireland
- 1927 in Northern Ireland
- 1928 in Northern Ireland
- 1929 in Northern Ireland
- 1930 in Northern Ireland
- 1931 in Northern Ireland
- 1932 in Northern Ireland
- 1933 in Northern hern Ireland
- 1936 in NorthIreland
- 1934 in Nortern Ireland
- 1937 in Northern Ireland
- 1938 in Northern Ireland
- 1939 in Northern Ireland
- 1942 in Northern Ireland
- 1943 in Northern Ireland
- 1944 in Northern Ireland
- 1946 in Northern Ireland
- 1947 in Northern Ireland
- 1950 in Northern Ireland
- 1951 in Northern Ireland
- 1952 in Northern Ireland
- 1953 in Northern Ireland
- 1954 in Northern Ireland
- 1955 in Northern Ireland
- 1956 in Northern Ireland
- 1957 in Northern Ireland
- 1959 in Northern Ireland
- 1960 in Northern Ireland
- 1961 in Northern Ireland
- 1963 in Northern Ireland
- 1964 in Northern Ireland
- 1967 in Northern Ireland
- 1985 in Northern Ireland
- 1987 in Northern Ireland
- 1991 in Northern Ireland
- 1992 in Northern Ireland
- 1st Bangor OB F.C.
- 2001 World Amateur Boxing Championships
- 2006 GP14 World Championships
- 2RN
- 7 Days (Ireland)
- A Monk Swimming
- A2 road (Northern Ireland)
- A24 road (Northern Ireland)
- A26 road (Northern Ireland)
- A29 road (Northern Ireland)
- A36 road (Northern Ireland)
- A4 road (Northern Ireland)
- A7 road (Northern Ireland)
- Aaron Robinson (footballer)
- Aaron Willis
- Abban of Magheranoidhe
- Abban of New Ross
- Abbey Villa F.C.
- Abbey Vocational School
- Abbeydorney
- Abbeylara
- Abbeyshrule
- Abbeyshrule Aerodrome
- Abercorn Primary School
- Aberfoyle, County Londonderry
- Abhartach
- Abraham Abell
- Abrakebabra
- Abstentionism
- Achaidh Leithdeircc
- Achill Sound
- Achillbeg
- Achonry
- Aclare
- Ada Dyas
- Adam and Paul
- Adam McGarry
- Adam McGurk
- Adam of Ross
- Adam Rooney
- Adamair
- Adamstown, Wexford
- Adare Bypass
- Adare Manor
- Adare Manor Hotel
- Ádhamh Ó Cuirnín
- Administrative Panel
- Admir Softić
- Adrian Archibald
- Adrian Cole
- Adrian Coote
- Adrian Cush
- Adrian Flavin
- Adrian Guelke
- Adrian James Martyn
- Adrian McQuillan
- Adrian Moyles
- Adrienne Kennaway
- Áed mac Ainmuirech
- Áed mac Colggen
- Áed Oirdnide
- Áed Róin
- Aengus Fanning
- Aengus mac Nadfraoch
- Aer Rianta International
- Aerfort na Minna
- Aghaboe
- Aghabullogue
- Aghadoe
- Aghadowey
- Aghadrumsee
- Aghagallon
- Agher
- Aghla Beg
- Aghla More
- Aglish
- Agnes Maillot
- Agricultural Panel
- Ahascragh
- Ahiohill
- Ahlul Bayt Islamic Centre
- Ahoghill
- AIB UK
- Aidan Collins (irish footballer)
- Aidan Cooney
- Aidan Davison
- Aidan Dowling
- Aidan Higgins
- Aidan Lynch (footballer)
- Aidan McArdle
- Aidan O'Kane
- Aidan Price
- Aideen O'Kelly
- Aiden O'Keefe (footballer)
- Aidhne
- Ailbe
- Ailbhe
- Ailbhe Mac Shamhráin
- Aileen Hull
- Aileran
- Ailesbury Road
- Ailill Aulom
- Ailill Caisfiaclach
- Ailill Finn
- Ailill Inbanda
- Ailill mac Slánuill
- Ailill Molt
- Aille River
- Aillwee Cave
- Aindrias Ó Caoimh (Attorney General)
- Aindrias Ó Caoimh (barrister)
- Áine Brady
- Áine Minogue
- Aine O'Sullivan
- Ainmuire mac Sétnai
- Air Accident Investigation Unit
- Airgetmar
- Aisling O'Sullivan
- Alain Rolland
- Alan Barnes (architect)
- Alan Bennett (Irish footballer)
- Alan Byrne
- Alan Caffrey
- Alan Campbell (sculler)
- Alan Doherty
- Alan Farquharson
- Alan Fettis
- Alan Gough
- Alan Hughes
- Alan Keane (GAA Player)
- Alan Keely
- Alan Kelly
- Alan Kelly (Irish politician)
- Alan Kirby
- Alan Mahon (footballer born 1978)
- Alan Mannus
- Alan McCrabbe
- Alan McDermott
- Alan McNally
- Alan Mulcahy
- Alan Murphy (footballer)
- Alan Murphy (Irish footballer)
- Alan Nolan
- Alan O'Hara
- Alan Quinlan
- Alan Reilly
- Alan Rutherford
- Alan Smeaton
- Alan Snoddy
- Alan Solomons
- Alasdair McDonnell
- Albert Anderson
- Albert Bridge, Belfast
- Albert Edward Heming
- Albert Foundry F.C.
- Albert Henry Hime
- Aldergrove, County Antrim
- Alec Bennett
- Alec Cooke, Baron Cooke of Islandreagh
- Alex Barclay
- Alex White (Irish politician)
- Alexander Arbuthnot (bishop)
- Alexander Armstrong (explorer)
- Alexander Haslett
- Alexander Martin Sullivan (Irish politician)
- Alexis FitzGerald, Jnr
- Alexis FitzGerald, Snr
- Alfred Chester Beatty
- Alfred Cooper (Irish cricketer)
- Alfred Webb
- Alice Glenn
- Alice Hanratty
- Alice Milligan
- Alison Doody
- All-China Gaelic Games
- All-Ireland Senior Football Championship 2002
- All-Ireland Senior Football Championship 2003
- All-Ireland Senior Ladies' Football Championship
- All Hallows College
- Allan Bresland
- Allan Hunter
- Allenstown House
- Allenwood
- Allihies
- Aloysius O'Kelly
- Altamuskin
- Altmore
- Alton United F.C.
- Amanda Brunker
- Ambassador Theatre (Dublin)
- Ambrose O'Donovan
- American Irish Historical Society
- Ampertaine Primary School
- Amsaig
- An Act against Plowing by the Tayle, and pulling the Wooll off living Sheep
- An Bord Altranais
- An Bord Pleanála
- An Bun Beag
- An Cheathrú Rua CLG
- An Claidheamh Soluis
- An Cosantóir
- An Ghaeltacht GAA
- An Leabhar Breac
- An Lúb GAC
- An Óige
- An Tóstal
- An Triail
- An Triúr Deirfiúr
- An tUltach
- Andersonstown
- Andersonstown News
- Andre Stitt
- Andrew Beattie (politician)
- Andrew Bonner
- Andrew Boylan
- Andrew Bree
- Andrew Cousins
- Andrew Doyle
- Andrew Graham (astronomer)
- Andrew Hageman
- Andrew Jackson, Sr.
- Andrew Jameson (politician)
- Andrew Looby
- Andrew Murray (boxer)
- Andrew Patterson
- Andrew Poynter
- Andrew Reed
- Andrew Scott (actor)
- Andrew Strong
- Andrew the Scot
- Andrew Trimble
- Andrew Ward (Rugby)
- Andrew White (cricketer)
- Andy Brady
- Andy Dunne
- Andy Jordan
- Andy Kirk (footballer)
- Andy Smith (footballer)
- Angela Lynch
- Angeline Ball
- Angie Phillips
- Anglesboro
- Anglo-Celt
- Anglo-Irish relations
- Anglo-Irish Trade Agreement
- Anglo-Irish Trade War
- Ann Murray
- Ann Ormonde
- Anna Catherine Parnell
- Anna Nolan
- Annabella, County Cork
- Annagh United F.C.
- Annaghdown GAC
- Annagry
- Annahugh
- Annalong Primary School
- Annals of Clonmacnoise
- Annals of Connacht
- Annals of Lough Cé
- Annals of Tigernach
- Annamoe
- Annascaul
- Anne Devlin (writer)
- Anne Dickson
- Anne Harris
- Anne Marie Forrest
- Anne O'Brien, 2nd Countess of Orkney
- Anne Rigney
- Annesley Bridge
- Annyalla
- Anthony Daly
- Anthony Farquhar
- Anthony Flood
- Anthony Foster
- Anthony Gerrard
- Anthony Gorman
- Anthony Horgan
- Anthony Lefroy (MP)
- Anthony Nash (hurling)
- Anthony Ormerod
- Anti H-Block
- Antoine Ó Raifteiri
- Antoinette McKenna
- Anton O'Toole
- Anton Rogan
- Antonia Campbell-Hughes
- Antrim Coast and Glens
- Aodán De Paor
- Aodán Mac Póilin
- Aogán Ó Rathaille
- Aoife Hoey (bobsleigh)
- Aoife Ní Fhearraigh
- Aontacht Éireann
- Archdiocese of Cashel and Emly
- Ardagh Chalice
- Ardagh, County Longford
- Ardara
- Ardboe O'Donnovan Rossa GAC
- Ardcath
- Ardcrony
- Ardee (Parliament of Ireland constituency)
- Ardfert (constituency)
- Ardfert (Parliament of Ireland constituency)
- Ardfheis
- Ardfield
- Ardfinnan
- Ardgarvan
- Ardgroom
- Ardkeen
- Ardkillihien
- Ardloughnabrackbaddy
- Ardmore GAC
- Ardmore, County Londonderry
- Ardpatrick
- Ardrahan
- Ards Peninsula
- Ards Rgrs F.C.
- Ardscoil Rís, Limerick
- Ardstraw
- Ardtrea North
- Argideen Rangers
- Arigna
- Arlene Hunt
- Armagh Borough (Parliament of Ireland constituency)
- Armagh City F.C.
- Armar Lowry-Corry, 5th Earl Belmore
- Arney
- Arnotts (Ireland)
- Art Cosgrove
- Art Imlech
- Art Mac Cumhaigh
- Art mac Lugdach
- Art McRory
- Art O'Connor
- Arthur Bateman
- Arthur Blair-White
- Arthur Blennerhassett
- Arthur Chichester, 3rd Earl of Donegall
- Arthur Douglas
- Arthur Morgan (Irish politician)
- Arthur Thomas (footballer)
- Arthur W. Conway
- Arthur Warren Samuels
- Articlave
- Articles relating to Drogheda
- Arts Council of Northern Ireland
- Arts Extra
- Arty McGlynn
- Arvagh
- Asgard (yacht)
- Asgard II
- Ashbury, Bangor
- Ashford Castle
- Ashtown (Dublin)
- Ashtown Castle
- Ashtown railway station
- Askeaton
- Assicus
- At First Light
- Ath an Chip
- Athboy
- Athea
- Athgarvan
- Athgoe
- Athlacca
- Athleague
- Athletic Grounds
- Athlone-Longford (Dáil Éireann constituency)
- Athlone (Parliament of Ireland constituency)
- Athlone GAA
- Athlone School of Music
- Athy (Parliament of Ireland constituency)
- ATL Rock School
- Atticall
- Attracta
- Attymass
- Audrey Dalton
- Aughafatten
- Aughamucky
- Aughane, Ireland
- Aughinish
- Aughleam
- Aughnacloy High School
- Aughnacloy, County Down
- Aughnanure Castle
- Aughrim Park
- Aughrim, County Galway
- Aughrim, County Wicklow
- Augustine Eriugena
- Augustus Young
- Aurora building
- Austin Currie
- Austin Hayes
- Austin O'Malley
- Austin Stack Park
- Austin Stacks
- Auston Rotherham
- Auto Da Fe
- Avoca Hockey Club
- Avondale House
- Avril Doyle
- Aylesbury, Tallaght
- Bad Habitz
- Báetán mac Ninneda
- Bagenal Harvey
- Baggot Street
- Baile na hAbhann
- Baile na nGall
- Bailieborough
- Bailieborough Castle
- Bairbre de Brún
- Bairbre Dowling
- Balally
- Balbriggan Town Council
- Baldonnel, Ireland
- Ballaghaderreen
- Ballaghmore
- Ballaghnatrillick
- Ballela
- Ballerin
- Ballerin GAC
- Ballickmoyler
- Ballina, County Tipperary
- Ballinacarriga Castle
- Ballinaclash
- Ballinadee
- Ballinafad
- Ballinagar
- Ballinagh
- Ballinahown
- Ballinakil
- Ballinakill
- Ballinakilla
- Ballinamallard United F.C.
- Ballinamore
- Ballinamuck
- Ballinascreen GAC
- Ballinasloe Town Council
- Ballinatray
- Ballindaggin
- Ballindoon
- Ballindoon Friary
- Ballingarry, County Limerick
- Ballingeary
- Ballinhassig
- Ballinhassig GAA
- Ballinlough, Cork
- Ballinlough, County Roscommon
- Ballinode
- Ballinskelligs
- Ballinspittle
- Ballintober, County Roscommon
- Ballintoy
- Ballintubber
- Ballintubber Abbey
- Ballitore
- Ballon, County Carlow
- Balloo, County Down
- Ballsbridge
- Ballybannan
- Ballybeen
- Ballybeg
- Ballybeggan
- Ballyboden
- Ballyboy
- Ballybrack
- Ballybrophy halt
- Ballybunion
- Ballycanew
- Ballycarry Primary School
- Ballycassidy
- Ballyclare Comrades F.C.
- Ballycogley
- Ballycogley, Wexford
- Ballycolla
- Ballycommon
- Ballyconnell
- Ballycopeland Windmill
- Ballycorus
- Ballycotton
- Ballycraigy
- Ballycumber
- Ballydargan
- Ballydougan
- Ballydown Primary School
- Ballyduff, County Waterford
- Ballyduff, County Wexford
- Ballyeaston
- Ballyedmond
- Ballyfarnan
- Ballyferriter
- Ballyfin
- Ballyforan
- Ballygall
- Ballygalley
- Ballygar
- Ballygarrett
- Ballygarvan, County Cork
- Ballygawley, County Sligo
- Ballyhackamore
- Ballyhaise
- Ballyhalbert
- Ballyhale
- Ballyhale Shamrocks GAA
- Ballyhanedin
- Ballyhaunis
- Ballyhea
- Ballyholme
- Ballyholme Yacht Club
- Ballyhoura Mountains
- Ballykeeran
- Ballykinler
- Ballylaneen
- Ballyleny
- Ballylesson
- Ballylickey
- Ballylooby
- Ballymacarrett
- Ballymacash
- Ballymacelligott
- Ballymacmaine
- Ballymacnab
- Ballymahon
- Ballymakeera
- Ballymartin
- Ballymascanlon
- Ballymoe
- Ballymoney United F.C.
- Ballymore, County Westmeath
- Ballymote
- Ballymount
- Ballymoyer
- Ballymully Glebe
- Ballymun Kickhams
- Ballymurphy, County Carlow
- Ballynacargy
- Ballynafeigh
- Ballynagarrick
- Ballynahatty, County Down
- Ballynahinch, County Galway
- Ballynahone Bog
- Ballynalliagh
- Ballynanty
- Ballynary
- Ballynoe
- Ballynure
- Ballyoan Cemetery
- Ballyoran Primary School
- Ballyporeen
- Ballyrashane
- Ballyroan Abbey GAA
- Ballyroan, County Dublin
- Ballyronan
- Ballyrory
- Ballysadare
- Ballysaggart Lough
- Ballyscullion
- Ballyshannon (Parliament of Ireland constituency)
- Ballysillan
- Ballyskeagh
- Ballysloe
- Ballyvary
- Ballyvaughan
- Ballyveelick
- Ballyvoy
- Ballywater Wind Farm
- Balmoral High School (Belfast, Northern Ireland)
- Balrothery
- Balscadden
- Baltimore (Parliament of Ireland constituency)
- Baltimore, County Cork
- Baltinglass
- Baltray
- Banagher
- Banagher GAC
- Banagher Horse Fair
- Banbridge Academy
- Banbridge High School
- Banbridge Town F.C.
- Bandon GAA
- Bandonbridge (Parliament of Ireland constituency)
- Bang Bang (Dublin)
- Bangor Academy and Sixth Form College
- Bangor Erris
- Bangor F.C.
- Bangor Mariners
- Banishment Act
- Banjax Studios
- Banna Strand
- Bannow (Parliament of Ireland constituency)
- Banteer
- Bantry Blues
- Bantry House
- Bap Kennedy
- Barbara Freitag
- Barley Bree
- Barleycove
- Barmeen
- Barn United F.C.
- Barna
- Barna Woods
- Barnesmore Gap
- Barney Bowers
- Barney Eastwood
- Barney McKenna
- Barney Rock
- Barney Travers
- Barnish Primary School
- Barntown
- Barntown Castle
- Baron Ardenerie
- Baron Bourke of Castleconnell
- Barrclashcame
- Barrie Todd
- Barrow Bridge
- Barrslievenaroy
- Barry Archer
- Barry Burke
- Barry Cahill
- Barry Clancy
- Barry Cogan
- Barry Corr
- Barry Desmond
- Barry Edward O'Meara
- Barry Egan
- Barry Fitzgerald
- Barry Geraghty
- Barry Glendenning
- Barry Holland
- Barry Hunter
- Barry McCrea
- Barry McCreadie
- Barry McGovern
- Barry McMullin
- Barry Molloy
- Barry Murphy (footballer born 1985)
- Barry Murphy (swimmer)
- Barry Ryan (footballer)
- Barry Slattery
- Batt O'Connor
- Battle of Carlow
- Battle of Confey
- Battle of Glenmalure
- Battle of Julianstown
- Battle of Kilrush
- Battle of Móin Mhór
- Battle of Naas
- Battle of Newtownbutler
- Battle of Prosperous
- Battle of the Diamond
- Battle of the Harrow
- Battle of Tochar Cruachain-Bri-Ele
- Battle of Tragh-Bhaile
- Battle of Tuberneering
- Baurtregaum
- Bawnboy
- BBC Northern Ireland Sports Personality of the Year
- Béal na mBláth
- Bealadangan
- Beamore, Drogheda
- Beara Way
- Béarlachas
- Beaufort's Dyke
- Beaumont Hospital, Dublin
- Beaumont, Dublin
- Bec mac Dé
- Bécc Bairrche mac Blathmaic
- Bective Abbey
- Beechfield
- Beechmount, Belfast
- Beenalaght
- Beggars Bush (Dublin)
- Beginish
- Bekan
- Bélchú
- Belderrig
- Belfast-Bangor railway line
- Belfast-Derry railway line
- Belfast and District League
- Belfast Castle
- Belfast City Cemetery
- Belfast Community Circus School
- Belfast Confetti
- Belfast Exposed
- Belfast Falls (UK Parliament constituency)
- Belfast Gazette
- Belfast Harbour Police
- Belfast Hebrew Congregation
- Belfast International Airport Constabulary
- Belfast International Airport Ltd.
- Belfast News
- Belfast Quarters
- Belfast Town Police
- Belfast Woodvale (UK Parliament constituency)
- Belfast Zoo
- Belfield
- Belgooly
- Bellaghy GAC
- Bellanamullia
- Bellarena
- Bellavary
- Belleeks
- Bellevue, Belfast
- Belmayne
- Belmont, Belfast
- Beltra
- Belturbet (Parliament of Ireland constituency)
- Belvedere House and Gardens
- Belvelly Castle
- Ben Briscoe
- Ben Dunne
- Ben Goram
- Ben Gorm
- Ben Hannigan
- Ben of Howth
- Ben Whelehan
- Benbane Head
- Benbaun
- Benburb Primary School
- Bendooragh
- Bennettsbridge
- Benraw
- Beragh
- Beragh Red Knights
- Bernadette Greevy
- Bernadette Nolan
- Bernadette Sands McKevitt
- Bernard Brogan (senior)
- Bernard Cowen
- Bernard Devlin (Roman Catholic Bishop)
- Bernard Dillon
- Bernard Dunne
- Bernard Farrell
- Bernard Flynn
- Bernard Kelly
- Bernard MacLaverty
- Bernard Mulrenin
- Bernard O'Donoghue
- Berngal
- Bert Tosh
- Bertie Cunningham
- Bertie McMinn
- Bertie Óg Murphy
- Beth Patterson
- Bettystown
- Beverley Flynn
- Big Tom
- Bill Cleary (footballer)
- Bill Collins (footballer)
- Bill Cullen (businessman)
- Bill O'Callaghan
- Bill Rolston
- Bill Whelan
- Billy Hamilton (footballer)
- Billy Kelleher
- Billy McAdams
- Billy McCandless
- Billy McCracken
- Billy Mills (poet)
- Billy Roche
- Billy Simpson
- Binevenagh
- Binghamstown
- Binnian Tunnel
- Birdhill
- Birr Castle
- Birr GAA
- Birr Town Council
- Bishop of Cork, Cloyne and Ross
- Bishop of Kilmore
- Bishopstown
- Bishopstown GAA
- Black Echoes
- Black Mountain (Belfast)
- Black River (Ireland)
- Black Rock Mountain, County Wexford
- Blackpool, County Cork
- Blackrock GAA
- Blackrock, Cork
- Blackstaff
- Blackstairs Mountain
- Blackstairs Mountains
- Blackwater, County Wexford
- Blackwatertown
- Blanket bog
- Blarney
- Blarney Castle
- Blasket Islands
- Blast bomb
- Blathmac
- Blathmac mac Cú Brettan
- Blathmac mac Máel Cobha
- Bláthnaid Ní Chofaigh
- Blaze X
- Bleary
- Blennerville Windmill
- Blessington (Parliament of Ireland constituency)
- Blood or Whiskey
- Bloody Foreland
- Bloody Sunday (1887)
- Bloomfield (Bangor suburb)
- Bloomfield, Belfast
- Blue Ball, County Offaly
- Bluestack Mountains
- Boaire
- Bob Bishop (scout)
- Bob Carlos Clarke
- Bob Casey (rugby player)
- Bob Crowley
- Bob Fullam
- Bob Kerr (Cricket official)
- Bob Kyle
- Bob Radcliffe
- Bob Tweedy
- Bobby Aylward
- Bobby Browne
- Bobby Campbell (footballer born 1956)
- Bobby Storey
- Bodbchad
- Bodenstown
- Bog of Allen
- Boggeragh Mountains
- Bogside
- Bohalis
- Boherlahen-Dualla GAA
- Bohermore
- Bohola
- Bohonagh
- Bonniconlon, County Mayo
- Book of Leinster
- Book of Lismore
- Bord Iascaigh Mhara
- Boreen
- Born To Sing (song)
- Borris-Ileigh GAA
- Borris-in-Ossory
- Borrisnoe
- Borrisokane
- Borrisoleigh
- Bosco Hogan
- Boss Volenti
- Botanic
- Bounard
- Boyerstown
- Boyle, County Roscommon
- Boyne Navigation
- BP Fallon
- Brackaville
- Brackenagh West Primary School
- Bracknagh
- Bran mac Finsnechta
- Brandon Creek
- Brandon Hill
- Brandon, County Kerry
- Brandub mac Echach
- Braniel
- Brantwood F.C.
- Bray Head
- Bready
- Breaffy
- Brehon's Chair
- Brendan Bowyer
- Brendan Carr (politician)
- Brendan Clarke
- Brendan Courtney
- Brendan Crinion
- Brendan Cummins (Cork hurler)
- Brendan Daly (footballer)
- Brendan Devenney
- Brendan Foley
- Brendan Graham
- Brendan Hamill
- Brendan Ingle
- Brendan Kelly (bishop)
- Brendan Kenneally
- Brendan Kennedy
- Brendan Martin Cup
- Brendan McGahon
- Brendan McGill
- Brendan Moloney
- Brendan Muldowney
- Brendan Mullin
- Brendan Murphy
- Brendan O'Carroll
- Brendan Rodgers
- Brendan Ryan
- Brendan Ryan (Dublin politician)
- Brendan Townsend
- Bres Rí
- Bresal Bó-Díbad
- Bretha Nemed Déidenach
- Brewster Park (Enniskillen)
- Brian Barry-Murphy
- Brian Begley
- Brian Brady
- Brian Carthy
- Brian Cash
- Brian Crowley
- Brian Dillons
- Brian Fitzgerald
- Brian Flood
- Brian Gannon
- Brian Gartland
- Brian Geary
- Brian Gibson (footballer)
- Brian Gillen
- Brian Goggin
- Brian Gregory (footballer)
- Brian Hillery
- Brian Hogan
- Brian Kelly (chess player)
- Brian Luighnech O Conchobhair
- Brian Magee
- Brian McEniff
- Brian McGovern
- Brian McGuigan
- Brian Meehan
- Brian O'Meara
- Brian O'Meara (rugby)
- Brian O'Riordan
- Brian Ó Domhnaill
- Brian Oswald Donn-Byrne
- Brian Peters (boxing promoter)
- Brian Phelan
- Brian Reilly
- Brian Shelley
- Brian Stafford
- Brian Stynes
- Brian Talty
- Brian Trench
- Brian Ua Neill
- Brian Warfield
- Brian Wilson (Northern Ireland politician)
- Brid Brennan
- Bríd Rodgers
- Bride Rovers GAA
- Bridges Of Drogheda
- Bridget McKeever
- Bridget Redmond
- Bridget Rice
- Bridgetown Abbey
- Bridie Gallagher
- Brigid Hogan-O'Higgins
- Brigitte Le Juez
- Brion (Irish)
- British-Irish Inter-Parliamentary Body
- British University Ladies' Gaelic Football Championship
- Brittas Bay
- Brittas, Dublin
- Broadford, County Limerick
- Brocagh Emmetts
- Brockagh
- Brockhill Newburgh
- Brockhill Taylor
- Brody Sweeney
- Bronagh Gallagher
- Brooklyn F.C. (Dublin)
- Broomhedge
- Broomhill, County Armagh
- Brosna, County Offaly
- Brother Walfrid
- Broughshane
- Brow Head
- Brown Bag Films
- Brownlow Integrated College
- Bruce Oldfield
- Bruff
- Bruff RFC
- Brush Shiels
- Bryan Cusack
- Bryan MacMahon
- Bryan MacMahon (writer)
- Bryan Meredith
- Bryan Murray (actor)
- Bryan Patrick Beirne
- Bryan Smyth
- Bryan Young (rugby player)
- Buckley Park
- Buckode
- Buick Primary School
- Builg
- Bulloch Harbour
- Bunclody
- Bunclody-Carrickduff
- Buncrana
- Bunmahon
- Bunny Carr
- Bunscoil an Chaistil
- Bunscoil an Iúir
- Bunscoil an tSléibhe Dhuibh
- Buntús Cainte
- Burgess GAA
- Burr Point
- Burren, County Down
- Burt, County Donegal
- Burtonport
- Busáras
- Bushmills
- Bushy Park (Rathfarnham)
- Butler Gallery
- Butlersbridge
- BWG
- Byrnes Cove
- C. Desmond Greaves
- C. W. Armstrong
- C.B.S. Charleville
- C2k
- C9TV
- Cactus World News
- Cadac-Andreas
- Cadamstown
- Cadet Officer
- Cáelbad
- Caha Mountains
- Caher Island
- Caherboshina
- Cahercommaun
- Caherlistrane GAC
- Cahir Castle
- Cahir GAA
- Cahir O'Doherty
- Cahir O'Doherty (musician)
- Cahir railway station
- Cahirciveen
- Cáin Adomnáin
- Cairbre Cinnchait
- Cairbre Lifechair
- Caitlín Brugha
- Caitlín Maude
- Caitriona O'Reilly
- Caitríona Ruane
- Caleb Folan
- Caledonian Ocean
- Calgary Chieftains
- Callan River
- Callan, County Kilkenny
- Caltra
- Caltra GAC
- Camaderry
- Cambridge Parnells
- Cambro-Norman
- Camenabologue
- Camillus Glynn
- Camogie Association of Ireland
- Camolin, County Wexford
- Campile
- Campsey
- Camus, County Galway
- Canada GAA
- Canals of Ireland
- Canon Island
- Canon John Hayes
- Canon Rock (island)
- Cantwell's Court
- Caoilfhionn Nic Pháidín
- Caoimhín Ó Raghallaigh
- Capecastle
- Cappagh
- Cappagh, County Limerick
- Cappamore
- Cappoquin
- Captain Gallagher
- Carál Ní Chuilín
- Carbery GAA
- Carbery Rangers
- Carbury
- Carey May Edge
- Carey, Northern Ireland
- Carigeen
- Carlisle Grounds
- Carlow-Kildare (Dáil Éireann constituency)
- Carnalea
- Carnamoyle
- Carnaross
- Carncastle
- Carndonagh
- Carndonagh Community School
- Carnew
- Carney, County Sligo
- Carnmoney
- Carnteel
- Carran
- Carrick-a-Rede Rope Bridge
- Carrick-on-Shannon
- Carrick (Parliament of Ireland constituency)
- Carrick Mountain
- Carrick on Shannon railway station
- Carrick on Suir railway station
- Carrick Primary School, Warrenpoint
- Carrick Rangers F.C.
- Carrickaness
- Carrickbanagher
- Carrickbrack Road
- Carrickfergus (Parliament of Ireland constituency)
- Carrickfergus College
- Carrickfergus Sailing Club
- Carrickmacross
- Carrickmines
- Carrickmore St. Colmcille's
- Carrickmore St. Colmcille's GFC
- Carrig Teabhra
- Carrigagulla
- Carrigahorig
- Carrigaline GAA
- Carriganass Castle
- Carriganimmy
- Carrigaphooca Castle
- Carrigart
- Carrigdhoun gaa
- Carrignafoy
- Carron Mountain
- Carrowclare
- Carrowhubbock South
- Carrowkeel, County Galway
- Carrowkennedy ambush
- Carrowteige
- Carte Manuscripts
- Carthage the Elder
- Casement Aerodrome
- Casement Park
- Cashel (Parliament of Ireland constituency)
- Cashen Bay
- Castle Archdale
- Castle Durrow
- Castle Park Ballincollig
- Castlebaldwin
- Castlebar (Parliament of Ireland constituency)
- Castlebawn
- Castlecaufield
- Castlecomer
- Castlecomer Plateau
- Castleconnor
- Castlecove
- Castledawson GAC
- Castlederg St. Eugene's
- Castlegregory
- Castlehaven
- Castlehaven GAA
- Castlehill
- Castleisland Desmonds
- Castlelyons
- Castlemaine, County Kerry
- Castlemartyr (Parliament of Ireland constituency)
- Castleplunket
- Castlerock
- Castlestrange stone
- Castletown-Kinneigh
- Castletown, County Cork
- Castletownshend
- Castletroy College
- Castleview
- Castlewarden
- Castlewarren
- Catald
- Cathair Mór
- Cathal Boylan
- Cathal Coughlan (politician)
- Cathal Cú-cen-máthair
- Cathal Lordan
- Cathal mac Conchobair
- Cathal mac Conchobair Ruadh Ua Conchobair
- Cathal mac Domhnall Ua Conchobair
- Cathal Naughton
- Cathal O'Byrne
- Cathal O'Connor
- Cathal Ó Murchadha
- Cathal Ó Searcaigh
- Catherine Byrne (politician)
- Catherine Cusack
- Catherine Day
- Catherine Murphy (politician)
- Catholic Guides of Ireland
- Catholic Rent
- Catholic Union
- Causeway, County Kerry
- Cavan (Parliament of Ireland constituency)
- Cavan Borough (Parliament of Ireland constituency)
- Cavan Institute
- Cavanakeeran
- CBS Eblana
- CBS Secondary School
- CBS Sexton Street
- Cecelia Ahern
- Cecil Frances Humphreys Alexander
- Cecil Lavery
- Cecilia Keaveney
- Celbridge Abbey
- Celerity (EDI Factory)
- Celia Larkin
- Celia Lynch
- Cellach mac Dunchad
- Cellach mac Faelan
- Celtic News
- Celtic Park (Derry)
- Celtic Revival
- Celtic Tenors
- Cenél Conaill
- Central Division Board
- Central Dublin
- Central Remedial Clinic
- Central Statistics Office (Ireland)
- Centre for Deaf Studies
- Ceoltóirí Chualann
- Ceramica Panaria-Navigare
- Certificate (HETAC)
- CEWC Northern Ireland
- Chaine Tower lighthouse
- Chance of a Lifetime
- Chanel College (Dublin)
- Channel One (Ireland)
- Chapel Royal (Dublin Castle)
- Chapelizod
- Chapelizod House
- Charitable Bequests Act
- Charlemont
- Charlemont Bridge
- Charlemont House
- Charles Anderson (cricketer)
- Charles Bianconi
- Charles Billingsley
- Charles Carrigan
- Charles Clinton
- Charles Coffey
- Charles Corry
- Charles Cuffe
- Charles Dolman
- Charles FitzGerald, 1st Baron Lecale
- Charles Flanagan
- Charles Fort (Ireland)
- Charles French
- Charles Hill (cricketer)
- Charles Joseph Gahan
- Charles K. Gerrard
- Charles McAuley
- Charles Mitchel
- Charles Moore (Irish MP)
- Charles O'Conor (reverend)
- Charles Owen O'Conor
- Charles Vallancey
- Charles White (Dr Rock)
- Charles Wynne Nicholls
- Charlesland
- Charlestown-Bellahy
- Charlestown, County Mayo
- Charleville (Parliament of Ireland constituency)
- Charleville railway station
- Charleville, County Cork
- Charlie Cullinane
- Charlie Gallagher
- Charlie Gallogly
- Charlie Hurley (Irish republican)
- Charlie McGettigan
- Charlie McGlade
- Charlie O'Connor
- Charlie Redmond
- Charlie Vernon
- Charlotte Brooke (writer)
- Cherryvalley
- Cherrywood
- Chicago Patriots Gaelic Football Club
- Chichester House
- Chichester Park
- Chick Gillen
- Chief Justice of Ireland
- Chief Medical Officer (Ireland)
- Childers Road Retail Park
- Chimney Corner F.C.
- Chris Andrews (politician)
- Chris Casement
- Chris Flood
- Chris Henry (rugby player)
- Chris Hughton
- Chris Lawn
- Chris MacManus
- Chris McKendry (footballer)
- Chris Morgan (Northern Irish footballer)
- Chris Mulhall
- Chris O'Brien
- Chris O'Dowd
- Chris Stevenson (academic)
- Chris Tardif
- Chris Walker (footballer)
- Chris Wall
- Christ Church, Bray
- Christmas in Ireland
- Christopher Byrne
- Christopher Doran
- Christopher Fettes
- Christopher Malseed
- Christopher Nolan (author)
- Christopher Whoriskey
- Christy Byrne
- Christy Doyle
- Christy O'Sullivan
- Christy Roche
- Chronicon Scotorum
- Chronology of Irish History to 1976
- Church House, Belfast
- Church Mountain
- Churchtown Primary School
- Churchtown, County Cork
- Churchtown, Dublin
- Cian Healy
- Cian Mackey(footballer)
- Cian O'Connor
- Cian O'Connor (hurler)
- Ciaran Barnes
- Ciaran Bourke
- Ciarán Brennan
- Ciaran Cannon
- Ciaran Creagh (Irish writer)
- Ciarán Cuffe
- Ciaran Donnelly (director)
- Ciaran Fitzgerald
- Ciaran Friel
- Ciarán Lynch
- Ciaran Lyng
- Ciarán Martyn
- Ciarán McMenamin
- Ciarán Murphy
- Ciaran O'Toole
- Ciarán O Gealbháin
- Ciarán of Clonmacnoise
- Ciarán Power
- Ciaran Quinn
- Ciarán Toner
- Ciarán Walsh
- Cidona
- Cillian Sheridan
- Cillian Vallely
- Cillín
- CIMR
- Cináed mac Írgalaig
- Cináed Ua Hartacáin
- Circuit Court (Ireland)
- Circuit of Ireland Rally
- City Arts Centre, Dublin
- Citywest
- Civil and Public Services Union
- Clabby
- Claddagh
- Claddaghduff
- Clady, County Tyrone
- Cladymore
- Claire McGill
- Clan Burke
- Clan MacFhirbhisigh
- Clan MacNamara
- Clan Ua Déaghaidh
- Clanabogan
- Clandeboye
- Clann Cholmáin
- Clann na nGael, Tyrone
- Clare (Parliament of Ireland constituency)
- Clare Flood
- Clare FM
- Clare Glens
- Clarecastle
- Claregalway CLG
- Claremont Railway Union
- Claremorris community radio
- Clarence Hotel
- Clarinbridge
- Clashmore
- Claus Dunne
- Clea Lake
- Clerys
- CLG Doire Trasna
- CLG Ogra Colmcille
- Cliff Byrne
- Cliff Taylor
- Cliffoney
- Clifton Wrottesley
- Cliftonville, Belfast
- Clinton Hennessy
- Clive Delaney
- Clogh, County Wexford
- Cloghan, County Offaly
- Cloghane
- Clogheen KerryPike NS
- Clogheen, County Tipperary
- Clogher Éire Óg
- Clogherhead
- Cloghernagh
- Clohamon
- Clonadrum
- Clonakilty (Parliament of Ireland constituency)
- Clonakilty GAA
- Clonakilty RFC
- Clonard monastery
- Clonard, Belfast
- Clonard, County Meath
- Clonaslee
- Clonbollogue
- Clondulane
- Clonee
- Clonegal
- Clonevan
- Clonfert
- Clonfin
- Clonfin Ambush
- Clonglash
- Clongriffin
- Clonliffe
- Clonmellon
- Clonmore, County Armagh
- Clonmore, County Carlow
- Clonmore, County Tipperary
- Clonoe O'Rahilly's
- Clonony
- Clonoulty
- Clonroche
- Clontarf Cricket Club Ground
- Clonygowan
- Cloonacool
- Cloondara
- Cloone
- Cloonfad
- Clooniffe
- Clostoken
- Clough
- Cloughduv
- Cloughmills
- Cloughmore
- Clounagh Junior High School
- Cloyne
- Cloyne GAA
- Cluain Immorrais
- Clyde Markwell
- Clyde Road
- Coachford
- Coachford College
- Coagh United F.C.
- Coalbrook
- Coalisland
- Coalisland Na Fianna
- Cobh Heritage Centre
- Cobthach Cóel Breg
- Cockle Island Boat Club
- Cóiced Ol nEchmacht
- Coimisiún na Gaeltachta
- Coirpre Cromm mac Crimthainn
- Coirpre mac Néill
- Coláiste Ailigh (Letterkenny)
- Coláiste Éanna
- Coláiste Feirste
- Colaiste na coirbe
- Coláiste na Trócaire
- Colebrooke River
- Colehill, County Longford
- Coleraine (Parliament of Ireland constituency)
- Coleraine Academical Institution
- Coleraine Rugby Club
- Colin Baker (footballer)
- Colin Cassidy
- Colin Clarke
- Colin Coates (footballer)
- Colin Cryan
- Colin Doyle
- Colin Holmes (GAA player)
- Colin Kenna
- Colin Moran
- Colin Murdock
- Colin Nixon
- Colin Patterson (Rugby player)
- Collanmore Island
- Collectio canonum Hibernensis
- Collegeland, County Armagh
- Collegeland, County Meath
- Collin Glen
- Collins Barracks (Cork)
- Collon
- Collooney
- Colm Burke
- Colm Cavanagh
- Colm Foley
- Colm Gallagher
- Colm Hilliard
- Colm Keaveney
- Colm Mac Con Iomaire
- Colm McCullagh
- Colm McFadden
- Colm O'Gorman
- Colm Ó Maonlaí
- Colm Ó Snodaigh
- Colm Sheehan
- Colm Tresson
- Colm Tucker
- Colmán mac Cobthaig
- Colman of Dromore
- Colman of Templeshambo
- Colum Kenny
- Colum McCann
- Columba of Terryglass
- Colville Deverell
- Comber Rec F.C.
- Comber Whiskey
- Come Back to Stay
- Comhairle na dTeachtaí
- Comhaltas Ceoltóirí Éireann
- Commander-in-Chief, Ireland
- Commission to Inquire into Child Abuse
- Commissioner for Victims and Survivors for Northern Ireland
- Committee on Evil Literature
- Communications in the Republic of Ireland
- Comprehensive Agreement
- Compulsion (band)
- Con Lehane (Irish republican)
- Con Roche
- Conaing Bececlach
- Conal Holmes O'Connell O'Riordan
- Conall Collamrach
- Conall Cremthainne
- Conall Murtagh
- Conavalla
- Concerned Group for Republican Prisoners
- Concerned Republicans
- Conchobar Abradruad
- Concorde Contemporary Music Ensemble
- Congal Cennfhatar mac Dúnchada
- Congal Cláiringnech
- Congested Districts Board for Ireland
- Conlig
- Conmaicne
- Conmaicne Mara
- Conn Ward
- Connachta
- Connaught Telegraph
- Conneff Park
- Connemara Heritage & History Centre
- Connemara National Park
- Connie Sheehan
- Connla Cáem
- Connolly Hospital, Blanchardstown
- Conolly's Folly
- Conor Cusack
- Conor Deasy
- Conor Gormley
- Conor Kenna
- Conor Kostick
- Conor McKeon
- Conor O'Grady
- Conor O'Shea
- Conor Sinnott
- Constance Smith
- Constantia Grierson
- Cooke RFC
- Cookstown Fr. Rock's
- Coolaney
- Coole
- Coole Park
- Coolea
- Cooley peninsula
- Coolmine
- Coolmine Community School
- Coolmore Stud
- Coomkeen
- Coosan, Athlone, Ireland
- Corann
- Corbet
- Corblonog
- Corduff
- Cork's 96FM
- Cork (Parliament of Ireland constituency)
- Cork Abbey
- Cork Borough (Dáil Éireann constituency)
- Cork City (Dáil Éireann constituency)
- Cork City (Parliament of Ireland constituency)
- Cork City Council
- Cork City North West (Dáil Éireann constituency)
- Cork City South East (Dáil Éireann constituency)
- Cork County Hall
- Cork East and North East (Dáil Éireann constituency)
- Cork Mid, North, South, South East and West (Dáil Éireann constituency)
- Cork North (Dáil Éireann constituency)
- Cork North East (Dáil Éireann constituency)
- Cork South (Dáil Éireann constituency)
- Cork South East (Dáil Éireann constituency)
- Cork University Press
- Cork West (Dáil Éireann constituency)
- Corlat
- Cormac Battle
- Cormac Breathnach
- Cormac Breslin
- Cormac mac Art O Melaghlain
- Cormac mac Cuilennáin
- Cormac McArdle
- Cormac McGinley
- Cornally
- Cornamona
- Cornashamsogue
- Cornelius Magrath
- Cornelscourt
- Corofin GAC
- Corofin, County Clare
- Corofin, County Galway
- Corr na Móna
- Cortoon Shamrocks
- Costello Inquiry
- Costelloe
- Cotter (surname)
- Could It Be That I'm In Love
- Council of Irish Guiding Associations
- Country Definitives
- County Antrim Yacht Club
- County Carlow
- County Palatine of Tipperary Act 1715
- Courceys
- Court of Criminal Appeal (Ireland)
- Courtmacsherry
- Courtown
- Courts of Justice Act 1924
- Craanford
- Craden Head
- Craggaunowen
- Craig Doyle
- Craigarogan
- Craigavon Bridge
- Craigbane GAC
- Cranagh
- Cranfield Point
- Cranmore Integrated Primary School
- Craobh Gál Gréine
- Cratloe
- Craughwell
- Crawford College of Art and Design
- Crawford Municipal Art Gallery
- Crawfordsburn
- Crazy Prices
- Creadran-Cille
- Creagh
- Crecora
- Creeping Jesus
- Creevekeeran Castle
- Creeveroe
- Cregagh
- Creggan, County Armagh
- Creggan, County Tyrone
- Cregganbaun
- Cregmore
- Crescent Arts Centre
- Crested ten
- Crettyard
- Crimecall
- Criminal Law (Sexual Offences) Act 2006
- Crimthann Coscrach
- Crimthann mac Fidaig
- Crimthann Nia Náir
- Crimthann Srem mac Echado
- Crinkill
- Croagh
- Croaghaun
- Crocknalaragagh
- Croghan (village), County Offaly
- Croghan Mountain
- Cronan Mochua
- Crookstown
- Crookstown, County Cork
- Croom, County Limerick
- Cross Your Heart
- Cross, County Mayo
- Crossdoney
- Crosshaven
- Crotty Schism
- Crotty v. An Taoiseach
- Crown of Ireland Act 1542
- Cruachan, Ireland
- Crumlin High School
- Crumlin Road Courthouse
- Crumlin Utd F.C.
- Crumlin, Belfast
- Crumlin, County Antrim
- Crumlin, Dublin
- CRY 104.0FM
- Cú Chuarán mac Dúngail Eilni
- Cú Chuimne
- Cúán úa Lothcháin
- Cuilcagh
- Cuimre na nGenealach
- Cullaville
- Cullyhanna
- Culmore F.C.
- Culnady
- Cultra
- Cultural and Educational Panel
- Cumdach
- Cummian
- Curlew Mountains
- Curracloe
- Curragh
- Curragh Camp GAA
- Curragh Incident
- Curraghboy
- Curraghchase Forest Park
- Curraha
- Curran, County Londonderry
- Currency Commission
- Curry Mulholland
- Curtis Allen
- Cusack Park (Ennis)
- Cusack Park (Mullingar)
- Cushendun
- Cushina
- Custom of Ulster
- Cyclefly
- Cycling Ireland
- Cynthia Longfield
- Cynthia Ní Mhurchú
- Cyprian Brady
- Cyril Cusack
- Cyril Farrell
- D. J. MacRandal
- Dabheog
- Dagda (band)
- Daingean
- Daire Doyle
- Daisy Hill Hospital
- Dal Araidhe
- Dál Fiatach
- Dál nAraidi
- Dalkey Island
- Dallan Forgaill
- Daly's Cross
- Damastown
- Dame Street
- Damian O'Hare
- Damian Reale
- Damien Brennan
- Damien Curran
- Damien Faulkner
- Damien Freeman
- Damien Hancock
- Damien Hayes
- Damien Magee
- Damien Martin
- Damien O'Donnell
- Damien O'Hagan
- Dan Boyle (politician)
- Dan Comyn
- Dan Desmond
- Dan Drew
- Dan Lane
- Dan Linehan
- Dan Looney
- Dan Neville
- Dan O'Boyle
- Dan Sullivan (hurler)
- Dan Wallace
- Danesfort CLG
- Daniel Florencio O'Leary
- Daniel Lafferty (footballer)
- Daniel Martin Wilson
- Daniel McCarthy
- Daniel Moloney
- Daniel Morrissey
- Daniel O'Connell Jr.
- Daniel O'Donoghue (Irish politician)
- Daniel Winter
- Danno O'Mahony
- Danny Culloty
- Danny Earls
- Danny Griffin
- Danny Hale (footballer)
- Danny Jordan
- Danny McCarthy (artist)
- Danny O'Connor (footballer)
- Danny Sonner
- Dara Calleary
- Dara Coleman
- Dara O'Hagan
- Dara Ó Cinnéide
- Dargan Bridge, Belfast
- Dargan Bridge, Dublin
- Darkley
- Darragh MacAnthony
- Darragh O'Brien
- Darragh O'Mahony
- Darran Lindsay
- Darrara
- Darren Burke
- Darren Corbett
- Darren Fay
- Darren Fitzgerald
- Darren Meade
- Darren O'Keeffe
- Darren Randolph
- Darren Rooney
- Dartry Mountains
- Daryl Clare
- Daryl Fordyce
- Daryl Smylie
- Dave Bennett (hurler)
- Dave Billings
- Dave Kennedy
- Dave Langan
- Dave McAuley
- Dave McClements
- Dave Mulcahy
- Dave Odlum
- Dave Quirke
- David Alderdice
- David Armstrong (Northern Irish footballer)
- David Bell (footballer)
- David Bevan
- David Bracken
- David Buchanan
- David Caffrey
- David Cassidy (footballer)
- David Clarke (minister)
- David Coleman (radio presenter)
- David Collins (hurler)
- David Connolly (skeleton racer)
- David Denby
- David Dennison (cricketer)
- David Freeman (Irish footballer)
- David Graham (cricketer)
- David Greene (footballer)
- David Harte
- David Healy (Irish politician)
- David Henry (footballer)
- David Hopkins (musician)
- David Huck
- David Irwin
- David J. Cooney
- David J. Simms
- David James O'Donoghue
- David Jeffrey
- David Lee (Irish footballer)
- David McCann
- David McCarthy
- David McCreery
- David McGill (footballer)
- David McWilliams (Irish musician)
- David Molony
- David Morris (snooker player)
- David O'Connor (footballer)
- David O'Loughlin
- David O'Sullivan (civil servant)
- David Parkes
- David Quinn (Irish artist)
- David Quinn (Irish journalist)
- David Rankin (cricketer)
- David Rosen (rabbi)
- David Scullion
- David Scully (footballer)
- David Simpson (cricketer)
- David Simpson (UK politician)
- David Stanton
- David Tomkin
- David Tyrell
- David Tyrrell
- David van Zanten
- David Wallace (rugby player)
- David Wheatley
- David Wilmot (actor)
- Davy Hyland
- Davy Larmour
- Davy O'Hare
- Davy Walsh (Irish socialist politician)
- Dawson Street
- DCU GAA
- Dean Cogan
- Dean Crouch
- Dean Delaney
- Dean Holden
- Dean Mernagh
- Dean Shiels
- Deans Grange Cemetery
- Deansgrange
- Dearmid O'Cuana
- Deasún Breathnach
- Deborah Alcock
- Deborah Smith
- Declan
- Declan Bree
- Declan Browne
- Declan Buckley
- Declan Kelly
- Declan Lally
- Declan Lowney
- Declan Lynch
- Declan McGonagle
- Declan Mullin
- Declan Nerney
- Declan O'Hara
- Declan O'Loan
- Declan Prendergast
- Declan Qualter
- Deerpark
- Deirdre Clune
- Deirdre de Burca
- Deirdre Shannon
- Déisi Tuisceart
- Dekker Curry
- Delamain (Cognac producer)
- Delbhna
- Delbhna Nuadat
- Delia Murphy
- Demmán mac Cairell
- Democratic Programme
- Denis Allen
- Denis Bastick
- Denis Bradley
- Denis Cashman
- Denis Daly
- Denis Fogarty
- Denis Foley
- Denis Halliday
- Denis Hickie
- Denis Horgan (hurler)
- Denis J. O'Sullivan
- Denis Leamy
- Denis Maurice O'Conor
- Denis Murray (athlete)
- Denis Naughten
- Denis O'Dea
- Denis O'Donnell
- Denis O'Donovan
- Denis Taaffe
- Dennehy
- Dennis Rogan, Baron Rogan
- Deoch Uisce
- Department for Employment and Learning
- Department for Regional Development
- Department for Social Development
- Department of Agriculture and Rural Development
- Department of Culture, Arts and Leisure
- Department of Education (Northern Ireland)
- Department of Enterprise, Trade and Investment
- Department of Finance and Personnel
- Department of Health, Social Services and Public Safety
- Department of the Environment (Northern Ireland)
- Derbfine
- Derek Birley
- Derek Carroll
- Derek Coughlan
- Derek Daly
- Derek Geary
- Derek Hardiman
- Derek Heasley
- Derek Higgins
- Derek Hill
- Derek L. Robinson
- Derek Lyng
- Derek McDowell
- Derek Molloy
- Derek Nally
- Derek O'Connor
- Derek O'Reilly
- Derek Pender
- Derek Roche
- Dergalt
- Dergmoney (Electoral Ward)
- Dergview F.C.
- Dermod O'Brien
- Dermod O'Meara
- Dermot Curtis
- Dermot Deasy
- Dermot Desmond
- Dermot Diamond
- Dermot Fitzpatrick
- Dermot Mannion
- Dermot McCaffrey
- Derrick Kennedy
- Derry Beckett
- Derry Citizens Defence Association
- Derry Hayes
- Derry Housing Action Committee
- Derry Intermediate Football Championship
- Derry Junior Football Championship
- Derryarrit
- Derryhale
- Derryhale Primary School
- Derrylaughan Kevin Barrys
- Derrylin
- Derrymore, County Kerry
- Derrynaflan Chalice
- Derrynaflaw
- Derrynane
- Derrynane Abbey
- Derrynane House
- Derryneill
- Derrytresk
- Derrytresk Fir An Chnoic
- Derryveagh Mountains
- Des Dalton
- Des MacHale
- Des McAleenan
- Des Whelan
- Desertmartin
- Desertmartin GAC
- Desmond Boal
- Desmond Doyle
- Desmond Governey
- Desmond Surfleet
- Desmond Titterington
- Dessie Ellis
- Devenish College
- Devil's Bit
- Devilling
- Devilsmother
- Devon Commission
- Diane Dodds
- Diarmaid Ferriter
- Diarmaid Mac an Bhaird
- Diarmaid the Just
- Diarmuid O'Carroll
- Diarmuid O'Hegarty
- Diarmuid Wilson
- Dickie Rock
- Dimitris Brinias
- Dingle (Parliament of Ireland constituency)
- Dingle Bay
- Dingle Marina
- Dion O'Cuinneagain
- Direct rule
- Discovery (Irish TV series)
- Disenfranchising Act
- Disibod
- District Court (Ireland)
- Divis
- Dluthach mac Fithcheallach
- Do I Dream
- Doagh
- Doctrine and Life
- Dodgson Hamilton Madden
- Doe Castle
- Dohenys
- Doire Colmcille CLG
- Doirí Beaga
- Dolla
- Dollaghan
- Dolores Keane
- Dolores Kelly
- Dolores Tyrrell Memorial Cup
- Dolphin's Barn
- Dolphin F.C. (Dublin)
- Dominic Foley
- Dominic Hannigan
- Dominic Kirwan
- Dominican College, Fortwilliam
- Dominican College, Portstewart
- Domnall Claen mac Lorcan
- Domnall Midi
- Domnall ua Néill
- Don Conroy
- Don Davern
- Don Givens
- Don Wycherley
- Donacarney
- Donagh
- Donaghadee Sailing Club
- Donaghadoo
- Donaghmede
- Donaghmore St. Patrick's
- Donal Broughan
- Donal Carey
- Dónal Clifford
- Donal Lenihan
- Donal Moynihan (Cork politician)
- Dónal O'Grady
- Dónal O'Grady (Limerick hurler)
- Donal O'Mathuna
- Dónall Mac Amhlaigh
- Donard
- Donard Park
- Donatus O'Murray
- Donegal (Parliament of Ireland constituency)
- Donegal Bay
- Donegal Borough (Parliament of Ireland constituency)
- Donegal Castle
- Donegal County Museum
- Donegal Democrat
- Donegal East (Dáil Éireann constituency)
- Donegal News
- Donegal People’s Press
- Donegal Post
- Donegal West (Dáil Éireann constituency)
- Donegall Square
- Donegore
- Donemana
- Doneraile
- Doneraile (Parliament of Ireland constituency)
- Donie Cassidy
- Donie Ryan
- Donnacha Cody
- Donnchad Baccach Ó Maolconaire
- Donnchad mac Domnall Claen
- Donnchad Midi
- Donnchadh Ó Briain
- Donnchadh Ó Corráin
- Donnybrook Rugby Ground
- Donnybrook, Dublin
- Donnycarney
- Donough O'Brien
- Dooish
- Doon, County Offaly
- Doora
- Doreen Keogh
- Dorset Street (Dublin)
- Doug Bennett (record producer)
- Doug Wood
- Douglas Bridge
- Douglas Cordner
- Douglas Dryburgh
- Douglas GAA
- Douglas Hyde Gallery
- Downhill Strand
- Downings
- Downpatrick F.C.
- Dowra
- Dr Tom Dooley Fund
- Dr. Cullen Park
- Dr. Dave Geaney
- Dr. Hyde Park
- Dr. Mark F. Ryan
- Dr. Strangely Strange
- Drawing Support
- Dreamin'
- Dregish Pearse Og
- Drenagh
- Drimnagh Castle
- Drimnagh Castle Secondary School
- Drogheda Park
- Dromahair
- Dromahane
- Dromara Village F.C.
- Drombeg stone circle
- Dromcolliher
- Dromina
- Dromineer
- Dromiskin
- Dromod
- Dromod railway station
- Dromore Central Primary School
- Dromore St. Dympna's
- Dromore West
- Druid Theatre Company
- DruidSynge
- Drum Manor Forest Park
- Drumbo
- Drumboe Castle
- Drumcliffe
- Drumcondra, Dublin
- Drumcong
- Drumcree College
- Drumcree, County Westmeath
- Drumglass High School
- Drumintee
- Drumkee
- Drumkeeran
- Drumlish
- Drumlough
- Drummin, County Mayo
- Drumnakilly
- Drumone
- Drumquin
- Drumquin Wolfe Tones
- Drumragh Integrated College
- Drumragh Sarsfields
- Drumraighland
- Drumrainy
- Drumree
- Drumsna
- Drumsurn
- Drumsurn GAC
- Dry Arch Park
- Duagh
- Dualla
- Dublin and Blessington Steam Tramway
- Dublin Buddhist Centre
- Dublin Business School
- Dublin Castle administration in Ireland
- Dublin Christian Mission
- Dublin City (Parliament of Ireland constituency)
- Dublin City Council Local Election Areas
- Dublin City FM
- Dublin Docklands
- Dublin Docklands Development Authority
- Dublin Fire Brigade
- Dublin Gay Theatre Festival
- Dublin Gospel Choir
- Dublin Harbour Police
- Dublin Housing Action Committee
- Dublin Mid (Dáil Éireann constituency)
- Dublin Samaritans
- Dublin St Patrick's (UK Parliament constituency)
- Dublin street corners
- Dublin Townships (Dáil Éireann constituency)
- Dublin Tutorial Centre
- Dublin United Transport Company
- Dubsúilech Ó Maolconaire
- Dubthaigh
- Dúchas
- Dudley Digges (actor)
- Duhallow
- Duhallow GAA
- Dui Dallta Dedad
- Dui Finn
- Dui Ladrach
- Dúinnín Ó Maolconaire
- Duleek
- Duleek (Parliament of Ireland constituency)
- Dún Laoghaire and Rathdown (Dáil Éireann constituency)
- Dún Lúiche
- Dún na Rí Forest Park
- Dunadry
- Dunamuggy
- Dunbrody Abbey
- Duncan's Dam
- Dundalk Institute of Technology
- Dundela F.C.
- Dundonald House
- Dundrod
- Dundrum, Dublin
- Dunegan
- Dúngal Eilni mac Scandail
- Dungannon Primary School
- Dungannon Thomas Clarkes
- Dungourney
- Dunkineely
- Dunleer (Parliament of Ireland constituency)
- Dunmore
- Dunmore Caves
- Dunmore McHales
- Dunmurry
- Dunmurry Rec F.C.
- Dunmurry YM F.C.
- Dunnaval
- Dunquin
- Dunree
- Dunree Fort
- Dunseverick
- Dunsink
- Durhamstown Castle
- Durrow, County Laois
- Durrow, County Offaly
- Dursey Island
- Dying Rebel
- Dysert O Dea monastery
- E. J. Conway
- Éamon a Búrc
- Eamon Broy
- Éamon de Buitléar
- Eamon Heery
- Eamon Kavanagh
- Eamon O'Keefe
- Eamon Rice
- Eamon Ryan
- Eamon Scanlon
- Eamonn Barry
- Eamonn Dolan
- Éamonn Goulding
- Eamonn Gregg
- Eamonn Kissane
- Eamonn McGirr
- Éamonn O'Donoghue
- Eamonn O'Hara
- Eamonn O'Neill (Irish politician)
- Eamonn Rooney
- Eamonn Walsh
- Earl of Bantry
- Earl of Carhampton
- Early Irish astrology
- East-Link (Dublin)
- East Belfast F.C.
- East Coast FM
- East Meath
- East Point Business Park
- East Wall
- East Wall Road
- Eaton Stannard Barrett
- Eazy Pass
- Eccles Street
- Economic and Social Research Institute
- Ed Moloney
- Eddie Bohan
- Eddie Bushe
- Eddie Copeland
- Eddie Flynn
- Eddie Fullerton
- Eddie Macken
- Eddie Mahon
- Eddie McGoldrick
- Eddie McGrady
- Eddie Nolan
- Eddie O'Brien (hurler)
- Eddie Reynolds
- Eddie Wade
- Edele Barrett
- Edenaveys
- Edenderry Primary School, Portadown
- Edenderry, County Down
- Edenderry, County Offaly
- Edenderry, County Tyrone
- Edendork St. Malachy's
- Edgeworthstown
- Edmondstown
- Edmund Garvey
- Edmund O'Meara
- Education Act 1695
- Education in Cork
- EDUN
- Edward Allman-Smith
- Edward Barry
- Edward Bunting
- Edward Cahill
- Edward Cooney
- Edward Daly (Irish revolutionary)
- Edward James Saunderson
- Edward Jordan
- Edward Joseph Byrne
- Edward Martyn
- Edward O'Brien (Irish republican)
- Edward O'Connell
- Edward Southwell Ruthven
- Edwin Bourke
- Edwin Maxwell
- Eeolas Institute
- Eglinton, County Londonderry
- Eglish
- Eglish St. Patrick's
- Eightercua
- Eileen Dunne
- Eileen Paisley, Baroness Paisley of St George's
- Eileen Pollock
- Eimear Quinn
- Eimhin
- Éire Óg (Red Deer)
- Éire Óg Anacarty GAA
- Éirígí
- Eithene
- Eithne FitzGerald
- EJ Donovan
- Elagh More
- Elections in Northern Ireland
- Electoral (Amendment) Act 1990
- Electronic voting in Ireland
- Elim mac Conrach
- Elim Olfínechta
- Elinor Darwin
- Elizabeth Sican
- Ellen Hutchins
- Ellen Mary Clerke
- Ely Place (Dublin)
- Embassy of the United States in Dublin
- Emerald GAA Grounds
- Emly
- Emma Byrne
- Emma Ledden
- Emmet Fox
- Emmet Friars
- Emmet Monument Association
- Emmet Stagg
- Emo, County Laois
- Emyvale
- Enagh Lough
- Enda Bonner
- Enda Gormley
- Enda Markey
- Enda Marren
- Enda McCallion
- Enda McGinley
- Enda Muldoon
- Enda Murphy
- Enda Walsh
- Enfield (County Meath) railway station
- Énna Aignech
- Énna Airgdech
- Énna Derg
- Ennis (Parliament of Ireland constituency)
- Ennis National School
- Enniskillen Rangers
- Enniskillen Town United F.C.
- Enterprise Ireland
- Environmental Conservation Organisation
- Environmental Protection Agency (Ireland)
- Eochaid Ailtlethan
- Eochaid Faebar Glas
- Eochaid Gonnat
- Eochaid mac Óengusa
- Eochaid Mugmedon
- Eochu Apthach
- Eochu Fíadmuine
- Eochu mac Ailella
- Eochu Mumu
- Eochu Uairches
- Éogan
- Eógan Bél
- Eógan mac Néill
- Eóganachta
- Eoghan Ó Tuairisc
- Eoin Bradley
- Eoin Collins
- Eoin Keary
- Eoin Kennedy
- Eoin Liston
- Eoin McNamee
- Eoin Mulligan
- Eoin Murphy
- Eoin Ó Broin
- Eoin Quigley
- Eoin Reddan
- Éraic
- Erc of Dalriada
- Erdini
- Erenagh
- Erganagh
- Eric Byrne
- Eric Gallagher
- Eric McGill
- Eric Welsh
- Erin Corr
- Erins Isle
- Erne Integrated College
- Ernest Bodell
- Ernest Ensor
- Errigal Ciarán GAC
- Errill
- Erris
- Erris Head
- Erskine Childers (UN)
- Eskra Emmetts
- Eterscél
- Ethnic minorities in Northern Ireland
- Eugene Cloonan
- Eugene Coughlan
- Eugene Crean
- Eugene Donnelly
- Eugene J. McCullough
- Eugene Lambert
- Eugene Laverty
- Eugene McGovern
- Eugene O'Growney
- Eugene O'Riordan
- Eugene Regan
- Eugene Sheehy
- Eunan Blake
- Europa Hotel
- Europe GAA
- European Communities Act 1972 (Ireland)
- European Convention on Human Rights Act 2003
- European Parliament constituencies in the Republic of Ireland
- European Parliament election, 1994 (Ireland)
- Evan Foulkes
- Evan McMillan
- Evening Press
- Everyman Palace Theatre
- Evish
- Eyeries
- Eyrecourt
- F. J. McCormick
- F. O. Stoker
- F. R. Higgins
- Faculty of Dentistry of the Royal College of Surgeons in Ireland
- Faelan mac Muiredach
- Fahan
- Faildergdóit
- Fáilte
- Fáilte Ireland
- Fairyhouse Racecourse
- Falcarragh
- Fallout (RTÉ drama)
- Falls Park
- Fanad
- Fanny Parnell
- Fanore
- Farah Abushwesha
- Farmleigh Bridge
- Farrel Corcoran
- Farrell (surname)
- Fartha, County Cavan
- Fartha, County Cork
- Fathers Rights-Responsibility Party
- Faughan Hill
- Faughanvale GAC
- Faughs
- Fay Devlin
- Feargal Browne
- Feargal Quinn
- Feargus O'Connor
- Feeny
- Feidlimid mac Óengusa
- Felim mac Cathal Crobderg Ua Conchobair
- Female hercules
- Fenagh, County Leitrim
- Fenit Harbour
- Fenit Island
- Fennagh, County Carlow
- Feothanach
- Fer Corb
- Ferbane
- Ferbane GAA
- Fergal Logan
- Fergal mac Máele Dúin
- Fergal O'Brien
- Fergal O'Hanlon
- Fergal Ryan
- Fergnae mac Oengusso Ibdaig
- Fergus Crawford
- Fergus Dubdétach
- Fergus Feehily
- Fergus Fortamail
- Fergus mac Áedáin
- Fergus Martin
- Fergus Scandal mac Crimthainn
- Fergus Slattery
- Fermanagh Herald
- Ferrybank, Waterford
- Ferrybank, Wexford
- Fethard-on-Sea
- Fethard (County Tipperary) (Parliament of Ireland constituency)
- Fiacha Sraibhtine
- Fiachna Ó Braonáin
- Fiachnae mac Demmáin
- Fiachra Trench
- Fíachu Findoilches
- Fíachu Finnolach
- Fíachu Fínscothach
- Fíachu Labrainne
- Fíachu Tolgrach
- Fíatach Finn
- Fidelma Healy Eames
- Field Marshal Montgomery Pipe Band
- Finaghy
- Finan of Lindisfarne
- Finbarr
- Fincath mac Garrchu
- Finglas
- Finian Lynch
- Finian McGrath
- Finn mac Blatha
- Finn Park
- Fínnachta
- Finnat Már
- Finnea
- Finnian of Clonard
- Finnian of Moville
- Fintan mac Bóchra
- Fintan McAllister
- Fintan O'Toole
- Fintan of Clonenagh
- Finvarra
- Fionn Regan
- Fionnuala Britton
- Fionnuala Sherry
- Fionnuala Sweeney
- Fíorscéal
- Fir Craibe
- Fir Domnann
- Fir Ol nEchmacht
- First-e Group PLC
- First Battle of Athenry
- First Minister's Questions
- Fish Go Deep
- Fishamble Street
- FitzGerald Stadium
- Fitzwilliam Square
- Flagmount
- Flahavan's
- Flancare Park
- Flann mac Lonáin
- Fleadh Nua
- Fleming Fulton School
- Foclut
- Focus Ireland
- Foinse
- Foras Áiseanna Saothair
- Foras na Gaeilge
- Foreglen
- Foreglen GAC
- Forkhill
- Forrester Harvey
- Fortnight Magazine
- Fortwilliam
- Forty Foot
- Fortycoats & Co.
- Fothad Airgthech
- Fothad Cairpthech
- Foundation for the Economics of Sustainability
- Fountainstown
- Four Men and a Dog
- Fourth Amendment of the Constitution Bill, 1968
- Foxford
- Foy Vance
- Foyleside Shopping Centre
- Fr. Mathew Bridge
- Fráech mac Finchada
- Fran O'Brien (footballer)
- Frances Browne
- Frances Fitzgerald (Irish politician)
- Francie Molloy
- Francis Bellew
- Francis Blackburne
- Francis Brolly
- Francis Browning
- Francis Bulfin
- Francis Burton
- Francis Connell
- Francis Humphreys
- Francis John Byrne
- Francis Johnston
- Francis Johnston (architect)
- Francis Joseph Charles O'Reilly
- Francis MacManus
- Francis O'Brien
- Francis Taylor (martyr)
- Frank "Dusty" Flanagan
- Frank Carty
- Frank Crowley
- Frank Devlin
- Frank Durkan
- Frank Egginton
- Frank Feighan
- Frank Filgas
- Frank Fleming
- Frank Gallagher (author)
- Frank Keenan (hurler)
- Frank Mannion
- Frank McDonald
- Frank Murphy (rugby player)
- Frank Norberg
- Frank O'Mara
- Frank O'Meara
- Frank Patterson
- Frank Prendergast
- Frank Sherwin
- Frank Taylor (Irish politician)
- Frankie Donnelly
- Frankie Gavin
- Fred Daly (golfer)
- Fred Horlacher
- Fred McMullan
- Fred Murray
- Fred Stedman
- Fred Tiedt
- Freddie Gilroy
- Frederic Trench, 3rd Baron Ashtown
- Frederick Blaney
- Frederick Crowley
- Frederick James Walker
- Frederick Mullins
- Frederick Ryan
- Frederick Shaw
- Freeman's Journal
- Frenchpark
- From Clare to Here
- Fudge 44
- Fulk Basset
- Fulke Southwell Greville-Nugent, 1st Baron Greville
- Furbo, County Galway
- Future Kings of Spain
- Fyffes
- GAA county
- Gabhra
- Gabriel Cleary
- Gabriel Rosenstock
- Gaelcholaiste Chill Dara
- Gaelcholáiste Reachrann
- Gaelic clothing and fashion
- Gaelic games
- Gaelic Grounds
- Gaelic revival
- Gaeltacht Quarter, Belfast
- Gaeltarra Éireann
- Gaiety Theatre, Dublin
- Galbally Pearses
- Galbally, County Limerick
- Galbally, County Tyrone
- Galbraith Lowry-Corry, 7th Earl Belmore
- Gallarus Castle
- Galley Head
- Galmoy
- Galtee Mountains
- Galway (Parliament of Ireland constituency)
- Galway Bay
- Galway Borough (Parliament of Ireland constituency)
- Galway Cathedral
- Galway City Council
- Galway City Museum
- Galway Clinic
- Galway County (Parliament of Ireland constituency)
- Galway International Oyster Festival
- Galway North (Dáil Éireann constituency)
- Galway North East (Dáil Éireann constituency)
- Galway South (Dáil Éireann constituency)
- Galway Sportsgrounds
- Galway Vindicator
- Gamanraige
- Gamblestown
- Games Administion Committee
- Gap of Dunloe
- Garda Dog Unit
- Garda GAA
- Garda Public Order Unit
- Garda Síochána Reserve
- Garda Technical Bureau
- Garda Water Unit
- Gardiner Street
- Garech Browne
- Gareth Cooney
- Gareth McGlynn
- Gareth McKee
- Garland Sunday
- Garraun Point
- Garret Morphey
- Garreth O'Connor
- Garrett Kelleher
- Garrienderk
- Garron Tower
- Garry Hynes
- Garryspillane
- Garvagh High School
- Garvaghey
- Garvetagh
- Gary Browne
- Gary Cooke
- Gary Deegan
- Gary Dempsey (footballer)
- Gary Duggan
- Gary Gillespie (presenter)
- Gary Hamilton
- Gary Howlett
- Gary Kidd
- Gary Longwell
- Gary Neely
- Gary Ryan
- Gary Walsh (Irish footballer)
- Gary Wilson (cricketer)
- Gate Theatre
- Gavelkind in Ireland
- Gavin Broder
- Gavin Duffy
- Gavin Lambe-Murphy
- Gavin McKenna
- Gavin O'Connor
- Gavin Ó Fearraigh
- Gavin Peers
- Gavin Walsh
- Gawley's Gate
- Gearóidín Bhreathnach
- Geasa (band)
- Geashill
- Géde Ollgothach
- Geesala
- Gemma Craven
- Gemma O'Connor
- Gene and The Gents
- General Assembly of the Presbyterian Church in Ireland
- Geoff Ferris
- Geological Survey of Ireland
- George Abraham Grierson
- George C. Bennett
- George Clancy
- George Crothers
- George Dowdall
- George Edward Dobson
- George Edward Pugin Meldon
- George Forrest (politician)
- George Francis Mulvany
- George Gorman (rugby player)
- George Harman
- George Harrison (Irish Republican)
- George Henry Moore
- George Knox
- George McMahon
- George McMullan
- George Meldon
- George Montgomery (MP)
- George Morrow (cricketer)
- George Morrow (illustrator)
- George Nicolls
- George Nugent-Grenville, 2nd Baron Nugent
- George Ogle
- George Otto Simms
- George Robinson (politician)
- George Thomas (soldier)
- George Thomas Stokes
- George Wolfe (Irish politician)
- Georgina Ahern
- Ger Brady
- Ger Connolly
- Ger Doherty
- Ger Farragher
- Ger Ryan
- Gerald Bartley
- Gerald Dawe
- Gerald Dros
- Gerald Duffy (cricketer)
- Gerald FitzGerald, 11th Earl of Kildare
- Gerald FitzGerald, 9th Earl of Kildare
- Gerald Murphy (hurler)
- Geraldine Dougan
- Geraldine Feeney
- Geraldine McMahon
- Gerard Anthony Hayes-McCoy
- Gerard Beirne
- Gerard Casey
- Gerard Casey (Irish republican)
- Gerard Casey (philosopher)
- Gerard Cavlan
- Gerard Houlahan
- Gerard Lally
- Gerard McKeown
- Gerard McLarnon
- Gerard McNamara
- Gerard Murphy (Irish politician)
- Gerard Nash
- Gerard Newe
- Gerard Rowe
- Gerard Slevin
- Gerard Steenson
- Gerard Stembridge
- Gerard Sweetman
- Gerry Burrell
- Gerry Daly
- Gerry Doyle
- Gerry Garvan
- Gerry Harrington
- Gerry McCaul
- Gerry McEntee
- Gerry McHugh
- Gerry McLoughlin
- Gerry O'Connor
- Gerry O'Riordan
- Gerry O'Sullivan
- Gerry Reynolds (Irish politician)
- Gerry Ryan (footballer)
- Gerry Storey
- Gertrude Hartland
- Gíallchad
- Giant's Park
- Giants Ring, Belfast
- Gibson's Hill
- Gilbert Cook
- Gilbert de Angulo
- Gilford
- Gilford Road
- Gill & Macmillan
- Gilla Isa Mor mac Donnchadh MacFhirbhisigh
- Gillian O'Sullivan
- Gillygooly
- Gilnahirk
- Gino Gallagher
- Given Lyness
- Glack
- Glack GAC
- Glandore
- Glangevlin
- Glanmire Community College
- Glantane East
- Glasgow Gaels GFC
- Glashedy
- Glasheen
- Glasthule
- Gleanntáin Ghlas' Ghaoth Dobhair
- Glebe Rangers F.C.
- Glen Dimplex
- Glen GAC
- Glen Hill
- Glen Lacey
- Glen of Imaal
- Glen River, County Donegal
- Glen River, County Down
- Glen Road
- Glen Wade
- Glen, County Donegal
- Glenamaddy GAC
- Glenamaddy Turlough
- Glenamoy
- Glenariff
- Glenariff Forest Park
- Glenarm Castle
- Glenavon F.C.
- Glenbrook, County Cork
- Glencairn
- Glencairn House
- Glencastle
- Glencolmcille
- Glencullen
- Glendun
- Glenealy, County Wicklow
- Glenelly St. Joseph's
- Glenfarne
- Glenhest
- Glenlara GAA
- Glenlola Collegiate School
- Glenmalure
- Glenmornan
- Glenn Cronin
- Glenn Ferguson
- Glenn Hunter
- Glenn Meade
- Glenn Whelan
- Glenoe
- Glenone
- Glens of Antrim
- Glenshane Pass
- Glenstal Abbey
- Glenullin GAC
- Glenveagh
- Glenveagh Castle
- Glenview, Tallaght
- Gloucestershire GAA
- Glounthaune
- GLUMP
- Gneeveguilla
- Goats Don't Shave
- Godfrey Graham
- Godfrey Quigley
- Golden Mile (Belfast)
- Golden Vale
- Goleen
- Gordon Blair
- Gordon Cooke
- Gordon Wilson (peace campaigner)
- Goresbridge
- Goretti Horgan
- Gormanston College
- Gormanston railway station
- Gormanston, County Meath
- Gort a' Choirce
- Gort na Mona GAA Club
- Gortaclare
- Gorteen
- Gortin
- Gortin St. Patrick's
- Gortloney
- Gortnahey
- Gortnahoo
- Gortrush (Electoral Ward)
- Gorumna Island
- Gorvagh
- Gosford Forest Park
- Goshedan
- Gougane Barra
- Goulane
- Gowran Park
- Gowran Park races
- Grace (cryptid victim)
- Gracehill
- Graduates' Memorial Building
- Grafton Street (Dublin)
- Graham Barrett
- Graham Browne
- Graham Callinan
- Graham Conway
- Graham Crothers
- Graham Kavanagh
- Graham Murphy
- Graham O'Hanlon
- Graham Reid (writer)
- Graham Stack
- Graham Ward
- Graiguenamanagh
- Gráinne Conole
- Gráinne Mhic Géidigh
- Granard
- Grand Canal Dock
- Grand Opera House (Belfast)
- Grange Corner
- Grange stone circle
- Grange, County Sligo
- Grangecon
- Gransha
- Granville, County Tyrone
- Great Blasket Island
- Great Industrial Exhibition (1853)
- Great Irish Famine (1740-1741)
- Great Seal of Northern Ireland
- Great Sugar Loaf
- Greater Belfast
- Green Ensign
- Green Glens Arena
- Green Spot (whiskey)
- Greencastle, County Donegal
- Greenfield Road
- Greenlough GAC
- Greg Costello
- Greg Delanty
- Greg Sparks
- Greg Thompson (cricketer)
- Gregg Fitzgerald
- Gresham Hotel
- Grey Abbey
- Griffith College Cork
- Groggan
- Grove Primary School, Belfast
- GS&WR Class D19
- Guardianship of Infants Act 1964
- Guinness R.F.C.
- Gulladuff
- Gurraneachoel
- Gurteen Beach
- Gus Joyce
- Guy Easterby
- Gweebara Bay
- H. Montgomery Hyde
- Hacketstown
- Haggardstown
- Hal Roach (comedian)
- Halfpenny Gate
- Halfway, County Cork
- Hannah Witneg
- Happy Man
- Harbour Place Shopping Centre
- Hardiman's History of Galway
- Harland & Wolff Welders F.C.
- Harold's Cross Stadium
- Harold Jackson (cricketer)
- Harold Mahony
- Harold McCusker
- Harry Avery's Castle
- Harry Blaney
- Harry Boland
- Harry Cannon
- Harry Cavan
- Harry Corley
- Harry Forsyth
- Harry Gregg
- Harry Kirkpatrick
- Harry Mullan
- Haughey's Fort
- Haulbowline
- Havelock House, Belfast
- Hazelbury Green
- Hazelwood, County Sligo
- Health and Social Care in Northern Ireland
- Healy Park
- Heatons
- Hedges Eyre Chatterton
- Heidi Bedell
- Helen's Bay
- Helen Keogh
- Helen Quigley
- Helen Waddell
- Helena Concannon
- Helena Moloney
- Helena Sheehan
- Hempstown
- Henrietta Battier
- Henrietta Street
- Henry Arthur Herbert (1756-1821)
- Henry Arthur Herbert (1815-1866)
- Henry Arthur Herbert (born 1840)
- Henry Benedict Medlicott
- Henry Byrne
- Henry Conyngham
- Henry D'Esterre Darby
- Henry Downey
- Henry Harrison (MP)
- Henry Horatio Dixon
- Henry Hugh Peter Deasy
- Henry Kenny
- Henry McIlhenny
- Henry McMahon (musician)
- Henry Morgan Dockrell
- Henry Murphy (field hockey player)
- Henry O'Neill (painter)
- Herbert Dixon, 1st Baron Glentoran
- Herbert Park
- Herbert Road
- Hercules Taylour
- Here Today Gone Tomorrow
- Hereditary in gross
- Heritage Council
- Heytesbury Street
- Hezlett Primary School
- Hibernia (personification)
- Hibernian Group
- Highfield, Belfast
- Hill of Ben
- Hill of Down
- Hillhall
- Hillview, Waterford
- His Majesty's Government in the Irish Free State
- Historic Ireland Preservation Trust
- History of Athlone
- Hogan Stand
- Hole in the Wall Gang (comedy)
- Hollyford
- Hollyfort
- Hollygrove, County Galway
- Hollymount
- Holm Park
- Holy Family Secondary School
- Holycross
- Holywood F.C.
- Holywood Rudolf Steiner School
- Holywood Yacht Club
- Home Countries International Regatta
- Honor Mary Crowley
- Hoodsgrove
- Hook Head
- Hook Peninsula
- Horoscopes (song)
- Horse and Jockey
- Horseleap
- Hospital, County Limerick
- Howard le Peton
- Howie King
- Howth Castle
- Howth Head
- HTB
- Hubert de Burgh (cricketer)
- Hugginstown
- Hugh Baker
- Hugh Byrne (Fianna Fáil)
- Hugh Conway (Lord Treasurer)
- Hugh Delargy
- Hugh Feeney
- Hugh Gibbons
- Hugh Godley, 2nd Baron Kilbracken
- Hugh Holmes
- Hugh Hyacinth O'Rorke MacDermot
- Hugh Kennedy (judge)
- Hugh Lambert
- Hugh Lane Municipal Gallery
- Hugh Law
- Hugh Law (Cumann na nGaedhael)
- Hugh Leonard
- Hugh McAteer
- Hugh McDaid
- Hugh O'Conor
- Hugh O'Donnell, 2nd Earl of Tyrconnell
- Hugh Russell
- Hugh Smyth
- Hugh T. Barrie
- Hugo Duncan
- Hugo Flinn
- Hugo MacNeill (rugby player)
- Huguenot cemetery, Dublin
- Humanist Association of Ireland
- Humphrey Kelleher
- Hungry Hill
- Hunterhouse College
- Hunterswood
- Hurlers Cross
- Iain Jenkins
- Ian Dempsey
- Ian Dowling
- Ian Humphreys
- Ian Maher
- Ian Malone (footballer)
- Ian McCrea
- Ian Nolan
- Ian Parsley
- Ian Ryan
- Ian Stewart (Northern Irish footballer)
- Iar Connacht
- Iarla Ó Lionáird
- If I Could Choose
- Iggy Jones
- IIB Bank
- Ilac Shopping Centre
- Illanmaster
- Imera Power
- In Lebor Ogaim
- Inagh
- Inch, County Clare
- Inchydoney
- Independent Fianna Fáil
- Independent Monitoring Commission
- Industrial and Commercial Panel
- InFOCUS
- Inis Beag
- Inishark
- Inishbiggle
- Inishbofin, Donegal
- Inishbofin, Galway
- Inishnabro
- Inishnee
- Inishrush
- Inishtooskert
- Inishtrahull Island
- Inishturk
- Inishvickillane
- Inistioge
- Inniscrone
- Innisfallen Island
- Innishannon
- Inniskeen
- Institute of Technology, Carlow
- Interprovincial Championship 2007
- Into Paradise
- Inver
- Iona Institute
- Ireland's Eye
- Ireland AM
- Ireland at the 1924 Summer Olympics
- Ireland at the 1928 Summer Olympics
- Ireland at the 1932 Summer Olympics
- Ireland at the 1948 Summer Olympics
- Ireland at the 1952 Summer Olympics
- Ireland at the 1956 Summer Olympics
- Ireland at the 1960 Summer Olympics
- Ireland at the 1964 Summer Olympics
- Ireland at the 1968 Summer Olympics
- Ireland at the 1972 Summer Olympics
- Ireland at the 1976 Summer Olympics
- Ireland at the 1984 Summer Olympics
- Ireland at the 1988 Summer Olympics
- Ireland at the 1992 Summer Olympics
- Ireland at the 1992 Winter Olympics
- Ireland at the 1998 Winter Olympics
- Ireland at the 2002 Winter Olympics
- Ireland at the Commonwealth Games
- Ireland in the Eurovision Dance Contest
- Ireland national basketball team
- Ireland national field hockey team
- Ireland on Sunday
- Ireland Unfree
- Ireland women's international rules football team
- Irereo
- Iris Robinson
- Irish (UK) general election, 1859
- Irish (UK) general election, 1874
- Irish (UK) general election, 1880
- Irish annals
- Irish anniversary festivals
- Irish Army deafness claims
- Irish Chamber Orchestra
- Irish Chancellor of the Exchequer
- Irish Chancery
- Irish Church Disestablishment Act 1869
- Irish Coercion Act
- Irish College
- Irish Congress of Trade Unions
- Irish Conservation Box
- Irish Conservative Party
- Irish copyright law
- Irish Council for Civil Liberties
- Irish Cricket Union
- Irish criminal law
- Irish Daily Mail
- Irish Daily Star
- Irish Film and Television Network
- Irish Folklore Commission
- Irish Free State (Agreement) Act 1922
- Irish Free State (Consequential Provisions) Act 1922
- Irish Free State at the Commonwealth Games
- Irish Free State Constitution Act 1922
- Irish Girl Guides
- Irish Ice Hockey Association
- Irish Medical Organisation
- Irish Metropolitan Conservative Society
- Irish midlands
- Irish Militant Labour
- Irish Militant Tendency
- Irish Moiled
- Irish Music Hall of Fame
- Irish Music Rights Organisation
- Irish national Australian rules football team
- Irish National Botanic Gardens
- Irish Nurses Organisation
- Irish Nutrition and Dietetic Institute
- Irish Peatland Conservation Council
- Irish presidential election, 1938
- Irish presidential election, 1959
- Irish presidential election, 1973
- Irish Primary Principals Network
- Irish Public Records Office
- Irish question
- Irish Red Cross
- Irish regions by GDP
- Irish Republican Solidarity Group
- Irish Road Haulage Association
- Irish Sun
- Irish trade mark law
- Irish Traditional Music Archive
- Irish Unionist Alliance
- Irish Unionist Party
- Irish University Bill
- Irish Wheelchair Association
- Irish Workers' Party
- Irishtown, Dublin
- Irwin's Bakery
- Is Always Over Now?
- Isaac Bickerstaffe
- Isaac Boss
- Isaac Butt
- Iseult Gonne
- Islamic Foundation of Ireland
- Island, Belfast
- Islandmagee
- Islandmagee F.C.
- It's Nice To Be In Love Again
- Italian Society Northern Ireland
- Ivan Anderson
- Ivan Little
- Ivan Magill
- Ivana Bacik
- Iveagh Primary School
- Iveragh Peninsula
- Iverni
- J. J. Clancy (Sinn Féin)
- J. J. O'Reilly
- J. Laurie Wallace
- J. M. Kerrigan
- J. P. Donleavy
- J. P. Farrell
- J. P. McMeekin
- J.K. Brackens GAA
- Jacinta Mcdevitt
- Jack Beattie
- Jack Bowden
- Jack Coughlan
- Jack Harte
- Jack Kyle
- Jack Lawrence (cricketer)
- Jack McCarthy (footballer)
- Jack McKee
- Jack Meldon
- Jack O'Connor (GAA)
- Jack Quinn (Gaelic footballer)
- Jack Stanley Gibson
- Jack Wall (politician)
- Jackie Jameson
- Jackie Rea
- Jacob Weingreen
- James's Fort
- James "Spanish" Blake
- James A. O'Flaherty
- James Agar, 1st Viscount Clifden
- James Arthur O'Connor
- James B. Lynch
- James Bannon
- James Bergin
- James Berrett
- James Boucher
- James Breen
- James Brophy
- James Burke (Irish politician)
- James Butler, 1st Earl of Ormonde
- James Butler, 2nd Earl of Ormonde
- James Butler, 3rd Earl of Ormonde
- James Butler, 4th Earl of Ormonde
- James Butler, 5th Earl of Ormonde
- James Chambers (Irish footballer)
- James Chambers (politician)
- James Coleman (Irish artist)
- James Collins (Irish politician)
- James Corry (MP)
- James Craig (Irish professor)
- James Crowley
- James Cullen (PTAA)
- James Daly, 1st Baron Dunsandle and Clanconal
- James de Barry
- James Dillon (Irish senator)
- James Dolan (Irish politician)
- James Dougherty (Medal of Honor)
- James Duffy (Irish publisher)
- James Ennis
- James Ervin
- James FitzGerald-Kenney
- James Flanagan (police officer)
- James Foley (cricketer)
- James Geoghegan
- James Gilhooly
- James Gill (cricketer)
- James Graham (cricketer)
- James Guinness Rogers
- James Hall (cricketer)
- James Harden
- James Hardiman
- James Heffernan (Labour)
- James Hickey (Irish politician)
- James Hinks
- James Hussey
- James J. Quinn
- James Jackman
- James Joyce Tower and Museum
- James Keddy
- James Kelly (Fianna Fáil)
- James Kelly (Irish Army officer)
- James Kempster
- James Lally
- James M. Bell (Medal of Honor)
- James Macmahon
- James Magee
- James Malton
- James McBrine
- James McCarthy (footballer)
- James Myles
- James Nix (Green party)
- James O'Brien (footballer)
- James O'Connor (footballer born 1984)
- James O'Connor (footballer)
- James O'Keeffe
- James Orr (poet)
- James Pattison
- James Plunkett
- James Reilly (politician)
- James Ryall
- James Samuel Emerson
- James Simmonds
- James Sloan (Orangeman)
- James Stephens (Irish nationalist)
- James Thomson (engineer)
- James Tunney (Irish politician)
- James White (Irish businessman)
- James Young (comedian)
- Jamesie O'Connor
- Jamestown, County Leitrim
- Jamie Dornan
- Jamie Duffy
- Jamie Mulgrew
- Jamie O'Neill
- Janet Ross
- Jarlath Fallon
- Jason Barry
- Jason Gavin
- Jason McDonald (actor)
- Jason Molins
- Jaunting car
- Jay McConnell
- Jean Butler
- Jeffery Hone
- Jenkinstown Park
- Jenkinstown, County Louth
- Jennifer Johnston
- Jennifer McCann
- Jenny Williams
- Jer Henchion
- Jeremiah Jordan
- Jeremiah Joseph Callanan
- Jeremy Davidson
- Jeremy Manning
- Jeremy McWilliams
- Jeremy Staunton
- Jerpoint Abbey
- Jerry Buttimer
- Jerry Cowley
- Jerry Cronin
- Jerry Flannery
- Jerry McCabe
- Jerry Murphy
- Jerry O'Sullivan (hurler)
- Jervis Shopping Centre
- Jessica Kürten
- Jig
- Jim Allister
- Jim Armstrong (guitarist)
- Jim Bennett (hurler)
- Jim Brogan
- Jim Buttimer
- Jim Cleary (Northern Irish footballer)
- Jim Crossan
- Jim Dougal
- Jim Fitzsimons
- Jim Gibbons, Jnr
- Jim Glennon
- Jim Gray (UDA member)
- Jim Lynch (hurler)
- Jim McCourt
- Jim McKeever
- Jim Norton (actor)
- Jim O'Flaherty
- Jim Rodgers (politician)
- Jim Staples (rugby player)
- Jim Tunney
- Jim Walsh (politician)
- Jimmy Brown (Irish nationalist)
- Jimmy Devins
- Jimmy Fullam
- Jimmy Holmes
- Jimmy Keaveney
- Jimmy Kennedy (Cork hurler)
- Jimmy Kirkwood
- Jimmy Leonard
- Jimmy Lynam
- Jimmy Magill
- Jimmy Murphy (playwright)
- Jimmy Nicholl
- Jimmy Nicholson
- Jimmy O'Connor
- Jimmy O'Neill
- Jimmy Rudd
- Jimmy Ryan (footballer born 1988)
- Jimmy Smyth
- Jimmy Steele (republican)
- JMI - Journal of Music in Ireland
- Joan Burke
- Joan O'Hara
- Joanna Tuffy
- Joanne Cuddihy
- Jocelyn de Angulo
- Joe Bambrick
- Joe Behan
- Joe Burke (keyboardist)
- Joe Callanan
- Joe Carey
- Joe Cooney
- Joe Delaney (snooker player)
- Joe Dolan
- Joe Doyle (musician)
- Joe Duffy
- Joe Dunne
- Joe Hendron
- Joe Kelly (Formula One)
- Joe Kendrick Jr.
- Joe McCleery
- Joe McGowan
- Joe McMahon
- Joe Murphy (footballer)
- Joe O'Cearuill
- Joe O'Neill (politician)
- Joe O'Reilly
- Joe O'Toole
- Joe Twomey
- Joe Walshe
- Joey Boland
- Joey Dunlop
- Joey O'Brien
- Joey O'Neill
- Jofroi of Waterford
- John "Jobby" Crossan
- John Alexander (Ireland)
- John Allen (cricketer)
- John Allen (hurler)
- John Arnott
- John Aston (cricketer)
- John Bacon (footballer)
- John Bailey (Irish politician)
- John Baptist Crozier
- John Barnes (cricketer)
- John Beattie (musician)
- John Blake (soldier)
- John Blake Powell
- John Boland (politician)
- John Bowes, 1st Baron Bowes
- John Boyne
- John Brophy (footballer)
- John Browne (Fine Gael)
- John Brunskill
- John Buckley (Aghabullogue hurler)
- John Byrne (cricketer)
- John Caffrey (footballer)
- John Carey (journalist)
- John Carr (footballer)
- John Carroll (Irish politician)
- John Carty
- John Carty (musician)
- John Cassidy (artist)
- John Caulfeild
- John Clyn
- John Cole (architect)
- John Coleman (Medal of Honor)
- John Connolly (hurler)
- John Connor (Irish politician)
- John Corry
- John Costelloe
- John Crawfurd (cricketer)
- John Cregan (Irish politician)
- John Cunningham (poet and dramatist)
- John Curran (Irish politician)
- John Cushnahan
- John Dardis
- John Davy (cricketer)
- John de Courcy Ireland
- John Dearden (cricketer)
- John Delaney (football administrator)
- John Dennehy
- John Devine (GAA)
- John Divilly
- John Doherty (musician)
- John Dowden
- John Doyle (artist)
- John Edward Walsh
- John Egan (footballer)
- John Ellis (Irish politician)
- John Farrell
- John Farry
- John Fee
- John Fitzpatrick (Irish footballer)
- John Flanagan (footballer)
- John Flood
- John Flynn (Footballer)
- John Foster of Dunleer
- John Francis Waller
- John Galvin (Irish politician)
- John Gerard Hanafin
- John Gill (trade unionist)
- John Gore, 1st Baron Annaly
- John H. Whyte
- John Harrington (karate champion)
- John Hayes (Gaelic footballer)
- John Hegarty
- John Henry Bernard
- John Horgan (academic)
- John J. Nash
- John Joe O'Reilly
- John Jordan (poet)
- John Joseph Brennan
- John Joseph Esmonde
- John Kelleher
- John Kelly (hurler)
- John Kelly of Killanne
- John Kerr (Irish Singer)
- John Kirby (Roman Catholic Bishop)
- John La Touche (politician)
- John Leonard (footballer)
- John Leslie Foster
- John Lowry-Corry, 8th Earl Belmore
- John Lymbrick Esmonde
- John Lynch (GAA)
- John Lynch (Kerry politician)
- John Lyons (hurler)
- John M. O'Sullivan
- John MacKenna
- John Macrory Magrath
- John Maginnis
- John Martin (Irish footballer)
- John McAliskey
- John McCaffrey
- John McCaffrey (hurler)
- John McClelland (footballer)
- John McCoy (Irish politician)
- John McDermott (Gaelic footballer)
- John McDonnell (footballer)
- John McGahern
- John McGrath (footballer born 1980)
- John McKenna
- John McNally (boxer)
- John McQuade
- John Melligan
- John Moloney (politician)
- John Moloney (rugby player)
- John Monroe
- John Mooney (cricketer)
- John Moore (Irish politician)
- John Moore (movie director)
- John Moriarty (writer)
- John Mulvihill
- John Murphy (hurler)
- John Murphy (Irish footballer)
- John O'Byrne
- John O'Connell (MP)
- John O'Connor (painter)
- John O'Dreams
- John O'Driscoll
- John O'Halloran
- John O'Kane Murray
- John O'Keeffe
- John O'Leary (Kerry politician)
- John O'Leary (Wexford politician)
- John O'Loughlin
- John O'Mahony (Mayo politician)
- John O'Neill (footballer)
- John O'Shea (humanitarian)
- John O'Sullivan (Cork politician)
- John Ormonde
- John Paul Phelan
- John Philip Bagwell
- John Purcell
- John Reynolds (musician)
- John Richardson Wigham
- John Rigby & Company
- John Robbie
- John Roche (politician)
- John Rogers (Irish lawyer)
- John Rooney (Irish politician)
- John Rooney (squash)
- John Ryan (Irish politician)
- John Sadleir
- John Sheahan
- John Shine (footballer)
- John Spillane
- John Stafford (Irish politician)
- John Taylor (hurler)
- John Teehan
- John Tennyson
- John Thomas Ball
- John Thompson (Irish footballer)
- John Treacy
- John Tudor Gwynn
- John V. Farrelly
- John Waters (columnist)
- John Welsh (actor)
- John West (footballer)
- John William Foster
- Johnjoe McFadden
- Johnnie White (Irish republican)
- Johnny Brady
- Johnny Callanan
- Johnny Campbell
- Johnny Clifford
- Johnny Connor
- Johnny Dooley
- Johnny Fox
- Johnny Geoghegan
- Johnny Magee
- Johnny McCauley
- Johnny McEvoy
- Johnny McKenna
- Johnny Moynihan
- Johnny Murray
- Johnny Ryan (academic)
- Johnny Wright (footballer)
- Johnstown Bridge
- Johnswell
- Jon Goodman
- Jon Sheerin
- Jonah Barrington
- Jonas Armstrong
- Jonathan Bardon
- Jonathan Beaumont
- Jonathan Bell (rugby player)
- Jonathan Bushe
- Jonathan Craig
- Jonathan Hayes
- Jonathan Minnock
- Jonathan Poss
- Jonathan Rea
- Jonathan Sexton
- Jonathan Speak
- Jonathan Tuffey
- Jonesborough, County Armagh
- Jonjo O'Neill
- Jonny Harkness
- Jonny Steele
- Jordanstown
- Joseph Barclay Pentland
- Joseph Blowick
- Joseph Brennan (civil servant)
- Joseph Burke (cricketer)
- Joseph Caprani
- Joseph Connolly
- Joseph Coskery
- Joseph Devonsher Jackson
- Joseph Donnelly
- Joseph Finnegan (Irish jurist)
- Joseph Lynch (cricketer)
- Joseph Malachy Kavanagh
- Joseph McGuinness
- Joseph O'Connor
- Joseph O'Doherty
- Joseph O'Neill
- Joseph O'Neill (1886-1953)
- Joseph O'Sullivan
- Joseph Patrick Haverty
- Joseph Sweeney (Irish politician)
- Joseph W. Carey
- Joseph Watson
- Josephine Hayden
- Josh McQuoid
- Joshua Boyle
- Joshua Pim
- Josias Cunningham
- Josie Hartnett
- Joyce's Country
- Joyrider
- Julianstown/Whitecross
- Julie le Brocquy
- Jump The Gun
- Justin Benson
- Justin Bishop (rugby player)
- Justin Fitzpatrick
- Justin Huntly McCarthy (1859-1936)
- Justin Keating
- Justin McMahon
- Justin Quinn
- Justin Sheriff
- Karl Bermingham
- Karl McKeegan
- Kate Crossan
- Kate Cruise O'Brien
- Kate Fahy
- Kate O'Toole (actress)
- Kate Smith (presenter)
- Kate Walsh (politician)
- Kathleen Clarke
- Kathleen Lynch
- Kathleen Lynn
- Kathleen O'Callaghan
- Kathleen O'Connor
- Kathleen O'Meara
- Kathleen O'Regan
- Kathleen Ryan
- Kathryn Thomas
- Kathy Durkin
- Kathy Sinnott
- Kathy Stanton
- Katie McMahon
- Katie Taylor (boxer)
- Keadue
- Keadue Rovers F.C.
- Kealin Ireland
- Keavy Lynch
- Keel, County Mayo
- Keenagh
- Keeper Hill
- Keith Bailey
- Keith Brady
- Keith Branagan
- Keith Doyle
- Keith Duffy (bassist)
- Keith Duffy (singer/actor)
- Keith Dunne
- Keith Gallagher
- Keith Keane
- Keith O'Neill (footballer)
- Keith Rossiter
- Keith Treacy
- Kells Priory
- Kells Water
- Kellswater
- Kelly Liggan
- Kelman Ltd.
- Ken Bruen
- Ken Goodall
- Ken Kennedy (rugby player)
- Ken Kirkpatrick
- Ken Oman
- Kenelm Henry Digby
- Kenmare Resources
- Kenneth Edgeworth
- Kenny Carroll
- Kenny Finn
- Kenny Gallery
- Kentstown
- Kern (soldier)
- Kerry-Limerick West (Dáil Éireann constituency)
- Kerry (Dáil Éireann constituency)
- Kerry (Parliament of Ireland constituency)
- Kerry Condon
- Kerry County Museum
- Kerry Head
- Kerthialfad
- Keshbridge
- Keshcarrigan
- Kevin Bonner
- Kevin Brady (footballer)
- Kevin Burke
- Kevin Cassidy
- Kevin Crawford
- Kevin Cronin (footballer)
- Kevin Doherty (footballer)
- Kevin Feeney
- Kevin Flynn (hurler)
- Kevin Foley (footballer)
- Kevin Fulton
- Kevin Grogan
- Kevin Hartnett
- Kevin Horlock
- Kevin Hoy
- Kevin Hughes (GAA)
- Kevin Kelbie
- Kevin Lynch's Hurling Club
- Kevin Maggs
- Kevin Maher
- Kevin Mahon
- Kevin Mcalvenna
- Kevin McArdle
- Kevin McBride
- Kevin McCabe (GAA)
- Kevin McCloy
- Kevin McGillian
- Kevin McMenamin
- Kevin O'Callaghan
- Kevin O'Connor (footballer)
- Kevin O'Reilly
- Kevin Sharkey
- Kevin Thornton
- Kevin Walker (footballer)
- Kevin Wilson (footballer born 1961)
- Kieran Crotty
- Kieran Donaghy
- Kieran Duff
- Kieran Hanrahan
- Kieran Harte
- Kieran Kelly (hurler)
- Kieran McGuckin
- Kieran Murphy (Erin's Own)
- Kieran Murphy (Sarsfield's)
- Kieran Nugent
- Kieran O'Donnell
- Kieran Phelan
- Kieran Purcell
- Kieron Brady
- Kieron Dawson
- Kieron Murphy
- Kilbeggan (Parliament of Ireland constituency)
- Kilbolane Castle
- Kilbree
- Kilbricken
- Kilbrittain
- Kilcar
- Kilcloon
- Kilcogy
- Kilcolgan
- Kilconly
- Kilconnell
- Kilcoo, County Down
- Kilcoole
- Kilcormac
- Kilcorney
- Kilcullen
- Kilcummin
- Kildangan
- Kildare-Wicklow (Dáil Éireann constituency)
- Kildare (Dáil Éireann constituency)
- Kildare railway station
- Kildare Street
- Kildavin
- Kildorrery
- Kildress Wolfe Tones
- Kildysart
- Kilfinane
- Kilflynn
- Kilgalligan
- Kilgevrin
- Kilglass
- Kilgobbin House
- Kilkeel High School
- Kilkelly
- Kilkenny (Dáil Éireann constituency)
- Kilkenny City (Parliament of Ireland constituency)
- Kilkenny People
- Kilkenny Voice
- Kilkerrin
- Kilkerrin-Clonberne
- Kilkieran
- Killadysert
- Killagoola
- Killaloe, County Clare
- Killaloo
- Killamery
- Killanne
- Killary Harbour
- Killashee
- Killead
- Killeagh
- Killean Primary School
- Killean, County Armagh
- Killeeshil St. Mary's
- Killeigh
- Killen, County Tyrone
- Killenaule
- Killererin
- Killester
- Killeter
- Killinaspick
- Killincarrig
- Killinchy
- Killinierin
- Killoughey
- Killowen
- Killowen Primary School, Coleraine
- Killua Castle
- Killurin
- Killycarnan
- Killyclogher St. Mary's
- Killyleagh YC F.C.
- Killyman
- Killyman St. Mary's
- Killywool
- Kilmacanerla
- Kilmacanogue
- Kilmacduagh
- Kilmacow
- Kilmacrenan
- Kilmacsimon
- Kilmactigue
- Kilmacud
- Kilmaine
- Kilmainham
- Kilmainham Treaty
- Kilmallock
- Kilmeen GAA
- Kilmeena
- Kilmichael, County Cork
- Kilmihil
- Kilmoganny
- Kilmore Quay
- Kilmore West
- Kilmore, County Wexford
- Kilmoyler
- Kilmuckridge
- Kilnacreeva
- Kilnamanagh
- Kilnamartyra
- Kilnamona
- Kilpedder
- Kilrea GAC
- Kilronan
- Kilross Primary School
- Kilruane MacDonaghs
- Kilshanchoe
- Kilshanny
- Kilsheelan
- Kilskeery
- Kiltale
- Kiltartan
- Kiltealy
- Kilteevan
- Kilternan
- Kiltyclogher
- Kilwee
- Kilworth GAA
- Kimmage
- Kinallen
- Kincora Boys' Home
- King's Hall, Belfast
- King's Hospital School
- King's Island, Limerick
- King's Stables
- Kingdom of Mide
- Kings of Ailech
- Kings of Airgíalla
- Kings of Breifne
- Kings of Deis Mumhain
- Kings of Dublin
- Kings of Síol Anmchadha
- Kings of Tir Connaill
- Kings of Ui Failghe
- Kingscourt
- Kingswood, Dublin
- Kinlough
- Kinnagoe Bay
- Kinnegad
- Kinnitty Castle
- Kinsale (Parliament of Ireland constituency)
- Kinsale road roundabout
- Kinsealy
- Kinvara (Moycullen)
- Kinviro
- Kircubbin, County Down
- Kish Bank
- Kitchen Bar
- Knight of Kerry
- Knightstown, County Kerry
- Knock, Belfast
- Knockacarracoush
- Knockacullion
- Knockagh Monument
- Knockahollet Primary School
- Knockatallon
- Knockboy
- Knockbreda F.C.
- Knockbridge
- Knockcloghrim
- Knockdrin
- Knockeyon
- Knocklyon
- Knockmealdown
- Knockmealdown Mountains
- Knocknagoshel
- Knocknaheeney
- Knocknahur
- Knocknakilla
- Knockoura
- Knocks
- Knocktopher
- Knockvicar
- Kris Lindsay (footballer)
- Krups
- Kunle Eluhanla
- Kyle McVey
- Kylemore Abbey
- Labasheeda
- Labbacallee wedge tomb
- Labhrás Ó Murchú
- Labour Panel
- Lackagh
- Ladies View (Ireland)
- Lady Mary Butler
- Ladybrook
- Lagan College
- Lagan Valley
- Lagan Weir
- Laghey
- Laghey Primary School
- Laidcenn mac Buith Bannaig
- Lake-burst
- Lakes of Killarney
- Lakeview Park
- Lambeg, County Antrim
- Lambert McKenna
- Landahaussy
- Landhead Primary School
- Lands Tribunal for Northern Ireland
- Lanesborough-Ballyleague
- Laragh, County Fermanagh
- Laragh, County Wicklow
- Largy
- Largydonnell
- Larne F.C.
- Larne Grammar School
- Larne Lough
- Larne Tech OB F.C.
- Larry Butler (Irish politician)
- Larry Byrne
- Larry Kirwan
- Larry O'Gorman
- Late Night Talk
- Latin Mass Society of Ireland
- Laudabiliter
- Laura Bell
- Laurelvale F.C.
- Laurence Gaughan
- Laurence Nugent
- Laurence Robbins
- Laurentius of Echternach
- Lavey GAC
- Law Reform Advisory Committee
- Lawrence Cove
- Lawrence McMahon
- Lawrencetown, County Galway
- Laytown-Bettystown-Mornington
- Laytown railway station
- LÉ Aisling (P23)
- LÉ Aoife (P22)
- LÉ Cliona (03)
- LÉ Deirdre (P20)
- LÉ Eithne (P31)
- LÉ Emer (P21)
- LÉ Grainne (CM10)
- LÉ Macha (01)
- LÉ Maev (02)
- LÉ Muirchú
- LÉ Orla (P41)
- Leabgarrow
- Leabhar Clainne Suibhne
- Leabhar Cloinne Aodha Buidhe
- Leabhar Cloinne Maoil Ruanaidh
- Leabharcham
- Leadmines
- Leanne Harte
- Leap, County Cork
- Leaving Certificate Vocational Programme
- Lebor na gCeart
- Lecale Coast AONB
- Lecanvey
- Lecarrow
- Leckview Park
- Lee Boyle
- Lee Roche (Irish footballer)
- Leenaun
- Leeson Street
- Legacurry
- Legananny
- Legoniel
- Leinster Junior Cup
- Leinster School of Music & Drama
- Leinster Senior Cup (football)
- Leitrim-Roscommon North (Dáil Éireann constituency)
- Leitrim (Dáil Éireann constituency)
- Leitrim, County Down
- Leitrim, County Leitrim
- Leixlip Town Council
- Lemass Era
- Lemybrien
- Len Duquemin
- Lenamore
- Lenan Head Fort
- Leo Cullen (rugby player)
- Leo Daly
- Leo Murray
- Leo Varadkar
- Leonard Grey, 1st Viscount Grane
- Leopardstown
- Leopardstown Racecourse
- Leslie Corry
- Let the People Sing
- Letterbreen
- Letterfrack
- Letterkenny Institute of Technology
- Letterkenny Library and Arts Centre
- Letterkenny Post
- Letterkenny Retail Parks
- Letterkenny Shopping Centre
- Lettermore
- Leviathan of Parsonstown
- Leviathan: Political Cabaret
- Lewis Emanuel
- Lewis Glucksman Gallery
- Liam Ahern
- Liam Ball
- Liam Beckett
- Liam Bennett
- Liam Burke
- Liam Campbell
- Liam Coyle
- Liam Cunningham
- Liam Cunningham (Irish politician)
- Liam Dowling
- Liam Dunne (footballer)
- Liam Fay
- Liam Fleming
- Liam Forde
- Liam Harnan
- Liam Hyland
- Liam Kavanagh
- Liam McMenamin
- Liam Naughten
- Liam O'Brien (actor)
- Liam O'Kane
- Liam Ó Maonlaí
- Liam Pilkington
- Liam Quinn
- Liam Reale
- Liam Rice
- Liam Ryan
- Liam Sheedy
- Liam Tuohy (actor)
- Liam Twomey
- Liam Whelan
- Liberal Repealer
- Lifeboat Luke
- Liffey Bridge (Phoenix Park Tunnel)
- Lillian Fitzpatrick
- Limavady Grammar School
- Limavady United F.C.
- Limerick (Dáil Éireann constituency)
- Limerick City-Limerick East (Dáil Éireann constituency)
- Limerick City (UK Parliament constituency)
- Limerick Leader
- Limerick Tunnel
- Lindy McDowell
- Linen Hall Library
- Lisa Dwan
- Lisa Lambe
- Lisa McDonald
- Lisbunny
- Lisburn Cricket Club
- Lisburn Road
- Liscannor
- Liscannor Bay
- Liscarroll Castle
- Liscloon
- Lisdoonvarna
- Lisheen
- Lislagan Primary School
- Lislea
- Lismore, County Waterford
- Lisnagarvey
- Lisnagarvey High School
- Lisnagourneen
- Lisneal College
- Lispole
- Lisronagh
- Lissan
- Lissan GAC
- Lisselton
- Lissycasey
- List of Jesuit schools in Ireland
- List of Megalithic monuments in Cork
- List of Statutory Rules of Northern Ireland
- List of Statutory Rules of Northern Ireland, 1978
- List of Statutory Rules of Northern Ireland, 1984
- List of Statutory Rules of Northern Ireland, 1986
- List of Statutory Rules of Northern Ireland, 1992
- List of Statutory Rules of Northern Ireland, 1993
- List of Statutory Rules of Northern Ireland, 1994
- List of Statutory Rules of Northern Ireland, 1995
- List of Statutory Rules of Northern Ireland, 2001
- List of Statutory Rules of Northern Ireland, 2002
- List of Statutory Rules of Northern Ireland, 2003
- List of Statutory Rules of Northern Ireland, 2004
- Listowel Castle
- Little Island, Cork
- Little Skellig
- Little Sugar Loaf
- Littleton, County Tipperary
- Lixnaw
- Liz Allen
- Lloyd Armstrong
- Lluther
- Local Authority Accommodation
- Local Electoral Areas
- Local Government (Dublin) Act 1993
- Loch Gabhair
- Lóegaire Lorc
- Lóegaire mac Néill
- London's Derry
- Londonderry Port
- Longford GAA
- Longford Town F.C.
- Longfort (Parliament of Ireland constituency)
- Longkesh
- Longphort
- Loop Head
- Lorcan Allen
- Lorcan mac Faelan
- Lord Bagenal
- Lord Deputy of Ireland
- Lord Justices (Ireland)
- Lord Kingsborough
- Lord Lieutenant of Antrim
- Lord Lieutenant of Armagh
- Lord Lieutenant of Belfast
- Lord Lieutenant of Carlow
- Lord Lieutenant of Cavan
- Lord Lieutenant of Clare
- Lord Lieutenant of Cork
- Lord Lieutenant of County Londonderry
- Lord Lieutenant of Donegal
- Lord Lieutenant of Down
- Lord Lieutenant of Dublin
- Lord Lieutenant of Fermanagh
- Lord Lieutenant of Galway
- Lord Lieutenant of Kerry
- Lord Lieutenant of Kildare
- Lord Lieutenant of Kilkenny
- Lord Lieutenant of King's County
- Lord Lieutenant of Leitrim
- Lord Lieutenant of Limerick
- Lord Lieutenant of Longford
- Lord Lieutenant of Louth
- Lord Lieutenant of Mayo
- Lord Lieutenant of Meath
- Lord Lieutenant of Monaghan
- Lord Lieutenant of Queen's County
- Lord Lieutenant of Roscommon
- Lord Lieutenant of Sligo
- Lord Lieutenant of the City of Cork
- Lord Lieutenant of the City of Dublin
- Lord Lieutenant of the City of Limerick
- Lord Lieutenant of the City of Londonderry
- Lord Lieutenant of Tipperary
- Lord Lieutenant of Tyrone
- Lord Lieutenant of Waterford
- Lord Lieutenant of Westmeath
- Lord Lieutenant of Wexford
- Lord Lieutenant of Wicklow
- Lord Mayor of Cork
- Loreto College, Coleraine
- Loreto Convent
- Lorraine Pilkington
- Lough Allen
- Lough Beg
- Lough Carra
- Lough Conn
- Lough Dan
- Lough Derg (Donegal)
- Lough Egish
- Lough Ennell
- Lough Gill
- Lough Island Reavy
- Lough Mask
- Lough Oughter
- Lough Owel
- Lough Ree
- Lough Sheelin
- Lough Sheever
- Lough Swilly
- Lough Tay
- Loughbrickland Crannog
- Loughbrickland Primary School
- Loughcrew
- Loughgall F.C.
- Loughinisland
- Loughlinstown
- Loughmacrory
- Loughmacrory St. Thersea's
- Loughmoe Castle
- Loughmore
- Loughmore-Castleiney GAA
- Loughrowane
- Louis Belton
- Louis Meldon
- Louisburgh, County Mayo
- Lourdes Stadium
- Louth-Meath (Dáil Éireann constituency)
- Love?
- Lovick Friend
- Lower Ballinderry
- Lower Broomhedge
- Lowry Cole
- Lowry Hamilton
- Loyalist Anti-Repeal Union
- Luan Parle
- Lucinda Creighton
- Lucy Cavendish
- Lucy Cometina Kurtz
- Lucy Kennedy
- Lugaid Íardonn
- Lugaid Laigdech
- Lugaid Lámderg
- Lugaid Luaigne
- Lugaid mac Con
- Lughaidh Ó Cléirigh
- Lugnaquilla
- Luke Fitzgerald
- Luke Fitzpatrick
- Luke J. Duffy
- Luke Malcher
- Lurgan Junior High School
- Lurganure
- Lurganville
- Lurriga patrickswell
- Lusk, County Dublin
- Lusmagh
- Lustybeg Island
- Lustymore Island
- Luxcel Biosciences
- Lyre (village)
- Lyric Theatre, Dublin
- M. J. Molloy
- Maam Cross
- Mabel Cahill
- Mac Aodhagáin
- Mac Cairthinn mac Coelboth
- Mac Cuilinn
- Macardle Moore Brewery
- Macartan
- MacCathbad Colman
- MacCumhail Park
- Macgillycuddy's Reeks
- Mackoght
- MacMurrough
- MacNeill's Egyptian Arch
- Macosquin
- Macra na Feirme
- MacRory Cup
- Madden, County Armagh
- Madeleine Taylor-Quinn
- Máel Cobo mac Fiachnae
- Máel Sechnaill mac Domnaill
- Máeleoin Bódur Ó Maolconaire
- Maeve Hillery
- Maeve Ingoldsby
- Maeve Kelly
- Maeve Kyle
- Magee of Donegal
- Maggie Murphy
- Magheracloone
- Magheraconluce
- Magherafelt Controlled Primary School
- Magherafelt GAC
- Magheramason
- Magheramorne
- Magheroarty
- Maghnus mac Conchobair Ruadh Ua Conchobair
- Magilligan GAC
- Magnet Networks
- Maharees
- Mahon, Cork
- Maigh Seola
- Maighread Ní Dhomhnaill
- Maine Soft Drinks Ltd
- Máire Bhuí Ní Laoghaire
- Máire Breatnach
- Máire Hoctor
- Maire o Ciaragain
- Mairead McGuinness
- Mairéad Ní Mhaonaigh
- Mairín Bean Uí Dhálaigh
- Máirín Quill
- Mal mac Rochride
- Mal Reynols
- Malachians F.C.
- Malachy Travers
- Malcolm Hamilton (archbishop)
- Malcolm MacLachlan
- Malcolm Smyth
- Malcom Terris
- Malcomson family
- Malin to Mizen
- Malin, County Donegal
- Mallow (Parliament of Ireland constituency)
- Mallow railway station
- Malone Avenue
- Malone College (Northern Ireland)
- Malone Park
- Man O'War, Dublin
- Mandate (trade union)
- Mangerton Mountain
- Manliff Barrington
- Mannafest
- Manning O'Brine
- Manorcunningham
- Mansfieldtown
- Marble Arch Caves
- Marc Coleman
- Marc MacSharry
- Marc Smyth
- Marcas Ó Murchú
- Marcus O'Sullivan
- Mardyke
- Margaret Burke Sheridan
- Margaret Collins-O'Driscoll
- Margaret Conlon
- Margaret Cox
- Margaret Dolan
- Margaret M. Pearse
- Margaret Pearse
- Margo (music)
- Margot Ruddock
- Margret of Thormond
- Mari Fitzduff
- Maria Christian
- Maria Corrigan
- Maria McCool
- Marian College Dublin
- Marian Harkin
- Marian McGennis
- Marie Mullen
- Mario Rosenstock
- Marion Coyle
- Marion Greeves
- Marita Conlon-McKenna
- Mark Carroll (athlete)
- Mark Caughey
- Mark Clinton
- Mark Clyde
- Mark Cohen (cricketer)
- Mark Daley
- Mark Daly
- Mark Devlin
- Mark Dickson (footballer)
- Mark Feehily
- Mark Geary
- Mark Gillespie (Irish cricketer)
- Mark Glendinning
- Mark Hackett
- Mark Holland (footballer)
- Mark Hughes (footballer born 1983)
- Mark Keane
- Mark Killilea, Snr
- Mark Little (Irish journalist)
- Mark McAllister
- Mark McCall
- Mark McKeever
- Mark Nolan (footballer)
- Mark O'Brien (footballer)
- Mark O'Halloran
- Mark O'Riordan
- Mark Reynolds (basketball)
- Mark Roantree
- Mark Rooney
- Mark Snodden
- Mark Sugden
- Markethill High School
- Markey Robinson
- Markievicz Park
- Markiewicz Park
- Marnie Holborow
- Marrowbone Lane
- Marsh's Library
- Martin Brennan (Irish politician)
- Martin Burke
- Martin Carney
- Martin Coleman, Jnr
- Martin Comerford
- Martin Earley
- Martin Fay
- Martin Gibbons
- Martin Hayes (musician)
- Martin J. Newell
- Martin Lynch
- Martin McCann
- Martin McGaughey
- Martin McGinley
- Martin Meenan
- Martin Morgan
- Martin O'Connell (footballer)
- Martin O'Connor
- Martin O'Donoghue
- Martin Roddy
- Martin Ryan
- Martina Anderson
- Martina Stanley
- Marty Conlon
- Marty Morrissey
- Mary Balfour Herbert
- Mary Ball
- Mary Barber
- Mary Bergin
- Mary Black
- Mary Flaherty (politician)
- Mary Gormley
- Mary Guiney
- Mary Henry
- Mary Immaculate College, Limerick
- Mary J. Hickman
- Mary Kenny
- Mary Laffoy
- Mary Mooney
- Mary Norris
- Mary Reynolds
- Mary Ryan (Irish politician)
- Mary Stanislaus MacCarthy
- Mary Tighe
- Mary Upton
- Mary White (Fianna Fáil politician)
- Mary White (Green Party politician)
- Mass rock
- Mater Dei Institute of Education
- Mater Private Hospital
- Mathghamhan
- Matt Brennan
- Matt Cooper (Irish journalist)
- Matt Devlin
- Matt Doherty Jr.
- Matt McCullough
- Matt Molloy
- Matthew Crossan
- Matthew Doherty
- Matthew Dwyer
- Matthew Hazley
- Matthew McGraw
- Matthew Stafford (Irish senator)
- Mattie McDonagh
- Mattie McGrath
- Matty Fuohy
- Mature recollection
- Maulin
- Maum
- Maumtrasna
- Maumturks
- Maura Murphy
- Maura O'Connell
- Maureen Haughey
- Maureen O'Carroll
- Maureen Potter
- Maurice Ahern
- Maurice Cummins
- Maurice Dease
- Maurice E. Dockrell
- Maurice FitzGerald, 18th Knight of Kerry
- Maurice Manning
- Maurice Morrow, Baron Morrow
- Maurice O'Connell
- Maurice O'Connell (author)
- Maurice O'Donoghue
- Maurice O'Driscoll
- Maurice Seezer
- May Blood, Baroness Blood
- Mayo (Parliament of Ireland constituency)
- Mayo County Council
- Mayo Echo
- Mayo News
- Mayo North (Dáil Éireann constituency)
- Mayo North and West (Dáil Éireann constituency)
- Mayo South-Roscommon South (Dáil Éireann constituency)
- Mayo South (Dáil Éireann constituency)
- Mayo West (Dáil Éireann constituency)
- Mayo, County Mayo
- Mazetown, County Antrim
- Mc Carthy Mor
- McCabe villas
- McCann Barracks
- McDiarmuid Park
- McGaheys Crossroads
- Mealagh Valley
- Meath Hospital
- Méav Ní Mhaolchatha
- Meelick, County Clare
- Meelick, County Galway
- Meelick, County Mayo
- Meigh
- Meilge Molbthach
- Meitheal
- Mel Deane
- Melvin Gaels GFC
- Member of Parliament (pre-Union Ireland)
- Members of the Northern Ireland Assembly
- Mercy College (Dublin)
- Merlin Park Regional Hospital
- Merrion Centre, Dublin
- Merrion Gates
- Merrion Road
- Merrion Square
- Merrion Street
- Mervyn Black
- Mervyn Wall
- Message to the Free Nations of the World
- Metaconstitution
- Metropolitan Cork
- Miceál O'Rourke
- Michael 'Ducksy' Walsh
- Michael Banim
- Michael Barrett (Irish politician)
- Michael Begley
- Michael Bell (Irish politician)
- Michael Bond (hurling manager)
- Míchael Breathnachs CLG
- Michael Brennan (Fine Gael)
- Michael Brennan (Progressive Democrats)
- Michael Browne (bishop)
- Michael Byrne (sailor)
- Michael Carruth
- Michael Carty
- Michael Carvill
- Michael Coey
- Michael Colgan (actor)
- Michael Collins (footballer)
- Michael Connolly
- Michael Corcoran (footballer)
- Michael Creed
- Michael Cronin (academic)
- Michael Cummins
- Michael D'Arcy
- Michael D'Arcy, Jnr
- Michael Dargan
- Michael Davern
- Michael Davitt Bridge
- Michael Deane
- Michael Derham
- Michael Devaney
- Michael Donnellan
- Michael Duff (footballer)
- Michael F. Kitt
- Michael Fahy
- Michael Fay Park
- Michael Fennelly (hurler)
- Michael ffrench-O'Carroll
- Michael Finneran
- Michael Finucane
- Michael Fitzpatrick (Irish politician)
- Michael Foley (footballer)
- Michael Halliday (footballer)
- Michael Heffernan
- Michael Herbert
- Michael Hilliard
- Michael Hogan (sportsman)
- Michael Horgan
- Michael Howard (Irish politician)
- Michael Jacob
- Michael Joe Cosgrave
- Michael Judge
- Michael K. Noonan
- Michael Kennedy (Dublin politician)
- Michael Kennedy (Longford politician)
- Michael Laverty
- Michael Legge (comedian)
- Michael Lipper
- Michael MacLaverty
- Michael McCann (footballer)
- Michael McCarthy
- Michael McGee
- Michael McGrath
- Michael McNamara
- Michael McNamara (Medal of Honor recipient)
- Michael McVerry
- Michael Moran ("Zozimus")
- Michael Moynihan (Kerry politician)
- Michael Mulcahy (Irish politician)
- Michael Mulcahy (painter)
- Michael Murphy (priest)
- Michael O'Brien (hurling manager)
- Michael O'Flanagan
- Michael O'Herlihy
- Michael O'Neill (footballer)
- Michael O'Suilleabhain
- Michael Ring
- Michael Seaver
- Michael Sheridan (Irish politician)
- Michael Smith (bishop)
- Michael Smith (poet)
- Michael Spillane (footballer)
- Michael Staines
- Michael Tierney (Professor of Greek)
- Michael Timlin
- Michael Toolan
- Michael Tubridy
- Michael Ward (Irish politician)
- Michael Withers
- Michael Yeats
- Micheál MacLiammóir
- Mícheál Ó Cléirigh
- Mícheál Ó Súilleabháin
- Michelle McIlveen
- Michelle O'Neill
- Mick Barry
- Mick Barry (politician)
- Mick Bermingham
- Mick Brennan
- Mick Cassidy (artist)
- Mick Dempsey
- Mick Fairclough
- Mick Falvey
- Mick Fealty
- Mick Gannon
- Mick Hoy (musician)
- Mick Kennedy
- Mick Lally
- Mick Leech
- Mick Malone (hurler)
- Mick Moloney
- Mick Moody
- Mick Murphy (Sinn Féin politician)
- Mick O'Driscoll
- Mick O'Flanagan
- Mick Quinn (writer)
- Mick Waters
- Mickey Brady
- Mickey Harte
- Mickey Keenan
- Mickey Whelan
- Micky Hamill
- Microdisney
- Mid Cork (Dáil Éireann constituency)
- Mid Limerick Brigade
- Midlands 103
- Midlands Gold
- Midlands of Ireland
- Midleton (Parliament of Ireland constituency)
- Midleton GAA
- Midleton RFC
- Midleton Very Rare
- Mike Finn
- Mike FitzGerald
- Mike Gibson
- Mike Hipwell
- Mike Kiernan
- Mike Milligan
- Mike Mullins
- Mike Nolan (singer)
- Mike O'Brien (hurler)
- Mildred Fox
- Milestone, County Tipperary
- Milford, County Armagh
- Milford, County Cork
- Milford, County Donegal
- Military College GAA
- Mill Bay
- Millbank, County Antrim
- Millennium Bridge (Dublin)
- Millennium Of Love
- Millmount Fort
- Millstreet
- Milltown Cemetery
- Milltown GAC
- Milltown, County Galway
- Milltown, County Kerry
- Milltown, Dublin
- Milltownpass
- Milo O'Shea
- Miltown Malbay
- Mining Heritage Trust of Ireland
- Mionnloch
- Misuse of Drugs Act (Ireland)
- Mitchel McLaughlin
- Mixtwitch
- Mochta
- Model Arts and Niland Gallery
- Moderator of the Presbyterian Church in Ireland
- Modomnoc
- Mogue Kearns
- Moira, County Antrim
- Molesworth Street
- Molly Bennett
- Molly Keane
- Monaghan Borough (Parliament of Ireland constituency)
- Monamolin
- Monard, County Cork
- Monaseed
- Monasteraden
- Monasterboice
- Monasterevin railway station
- Monbeg
- Moneydarragh Primary School
- Moneygall
- Moneygall GAA
- Moneymore drogheda
- Moneymore GAC
- Moneymore Primary School
- Moneyneany
- Mongfind
- Mongohorn
- Monica Barnes
- Monivea
- Monivea Abbeyknockmoy
- Monk Gibbon
- Monknewton
- Monkstown Community School
- Monkstown, County Antrim
- Monteith, County Down
- Montgomery Tully
- Monto
- Montpelier, County Limerick
- Montpelier, Limerick
- Moone
- Moore McDowell
- Moortown St. Malachy's
- Morning Ireland
- Mornington House
- Mornington, County Meath
- Morton Stadium
- Mosney railway station
- Moss-Side, County Antrim
- Mossy O'Riordan
- Mother Vincent Whitty
- Mound of the Hostages
- Mount Anville Secondary School
- Mount Callan
- Mount Errigal
- Mount Gilbert Community College
- Mount Jerome Cemetery
- Mount Leinster
- Mount Temple, County Westmeath
- Mount Vernon, Belfast
- Mountains of East Kerry
- Mountains of the Dingle Peninsula
- Mountains of the Iveragh Peninsula
- Mountbolus
- Mountcharles
- Mountcollins
- Mounthill
- Mountjoy
- Mountjoy Square
- Mountmellick
- Mountshannon
- Mourne Abbey
- Mourne Independent Christian School
- Mourne Mountains
- Moville
- Moville Community College
- Moving Hearts
- Moxie Dublin
- Moy Tir na nOg
- Moycullen
- Moylagh, County Meath
- Moylagh, County Tyrone
- Moyle Park College
- Moyola Park F.C.
- Moyola Park Golf Club
- Moyry Castle
- Moyvane
- Moyvoughly
- Mr Gay Ireland
- MS Readathon
- Muckanaghederdauhaulia
- Muckross House
- Muff, County Donegal
- Mug Corb
- Mug Nuadat
- Muinemón
- Muintearas
- Muintir na hÉireann
- Muintir na Tíre
- Muirchertach Mac Lochlainn
- Muirchertach mac Néill
- Muire
- Muiredach
- Muiredach Bolgrach
- Muiredach mac Bran
- Muiredach mac Murchad
- Muiredach Tirech
- Mullacor
- Mullagh, County Galway
- Mullaghareirk Mountains
- Mullaghbawn
- Mullaghboy
- Mullaghcleevaun
- Mullaghglass
- Mullaghmeen
- Mullaghmore, County Clare
- Mullaghmore, County Sligo
- Mullaghmore, County Tyrone
- Mullen Bridge
- Mullingar Town F.C.
- Mulranny
- Mulrany
- Multidenominational school
- Munchin
- Mundy
- Munster Blackwater
- Munterconnaught
- Murchadh Ó Cuindlis
- Murder triangle
- Murlough Bay
- Murrisk
- Murroe
- Museum District, Dublin, Ireland
- Museum of Country Life
- Musgrave Foodservices
- Musgrave Park, Cork
- Musgrave Retailer Services
- Musgrave, Belfast
- Mweelrea
- Myer Hoffman
- Myra Barry
- Myrtleville
- Myshall
- Mysterious Woman
- N10 road
- N19 road
- N20 road
- N22 road
- N23 road
- N24 road
- N26 road
- N27 road
- N28 road
- N29 road
- N30 road
- N32 road
- N51 road, Ireland
- N53 road
- N54 road
- N55 road
- N58 road
- N59 road
- N60 road
- N61 road
- N62 road
- N63 road
- N65 road
- N66 road
- N71 road
- N74 road
- N75 road
- N76 road
- N77 road
- N78 road
- N80 road
- N81 road
- N83 road
- N84 road
- N87 road
- Na Casaidigh
- Na Magha CLG
- Na Piarsaigh GAA
- Naas General Hospital
- Nad, County Cork
- Nagnatae
- Naimee Coleman
- Nano Reid
- Naomh Mearnóg
- Naomi Long
- Nassau Street (Dublin)
- Natasha Nic Gairbheith
- Nath Í
- Nathaniel Thomas Hone
- National Basketball Arena
- National Bureau of Criminal Investigation
- National Centre Party (Ireland)
- National Chamber Choir (Ireland)
- National College of Ireland
- National Day of Commemoration
- National Labour Party (Ireland)
- National Maritime Museum of Ireland
- National Monument (Ireland)
- National Party (Ireland)
- National Performing Arts School
- National Ploughing Championships
- National Print Museum of Ireland
- National Roads Authority
- National school
- National Song Contest
- National Spatial Strategy
- National Stadium (Ireland)
- National Standards Authority of Ireland
- National Tidy Town Awards
- Natural History Museum (Ireland)
- Naughton Gallery at Queen's
- Naval Service Reserve
- Navan Man
- Neal Blaney
- Neale
- Neale Fenn
- NEAR FM 101.6FM
- Ned Hayes
- Ned O'Sullivan
- Neds Point Fort
- Neil Anderson
- Neil Best
- Neil Carson
- Neil Gallagher (footballer)
- Neil Gill
- Neil McMillan
- Neil Shawcross
- Neil Sinclair
- Nemo Rangers GAA
- Nenagh Guardian
- Nephin
- Nerve Centre
- Nessa Childers
- Nessan Quinlivan
- New Midleton Distillery
- New York GAA
- Newbliss
- Newbridge Avenue
- Newbridge, County Galway
- Newbuildings
- Newcastle F.C.
- Newcastle West
- Newcastle, County Dublin
- Newcastle, County Wicklow
- Newcestown
- Newcestown GAA
- Newgate Prison, Dublin
- Newgrange cursus
- Newington YC F.C.
- Newington, Belfast
- Newlands Cross
- Newmarket-on-Fergus
- Newmarket GAA
- Newmarket, County Cork
- Newmills
- Newport, County Mayo
- Newry (Parliament of Ireland constituency)
- Newry Bosco GFC
- Newry City F.C.
- Newry High School
- Newry River
- Newry Town Hall
- Newtown Limavady (Parliament of Ireland constituency)
- Newtown School, Waterford
- Newtown, County Laois
- Newtown, County Tipperary
- Newtownabbey Community High School
- Newtownbreda
- Newtownbreda High School
- Newtowncashel
- Newtowncloghoge
- Newtownmountkennedy
- Newtownstewart St. Eugene's
- Nia Segamain
- Nial Fennelly
- Niall Breslin
- Niall Bruton
- Niall Caille
- Niall Collins
- Niall FitzGerald
- Niall Frossach
- Niall MacGinnis
- Niall Madden
- Niall McCarthy
- Niall McDarby
- Niall Moran
- Niall O'Brien (Columban missionary priest)
- Niall O'Dowd
- Niall O'Reilly
- Niall Patterson
- Niall Stokes
- Niall Toibin
- Niall Williams
- Niamh Bhreathnach
- Niamh Cosgrave
- Niamh Cusack
- Nicholas Ball (Irish lawyer)
- Nicholas Furlong
- Nicholas O'Shea
- Nicholas Robinson
- Nicholas Roche
- Nick Dunning
- Nick Popplewell
- Nick Sweeney
- Nicky McFadden
- Nigel Boyd
- Nigel Brady
- NIPSA
- Nixon's Corner
- Noble Huston
- Noel Bailie
- Noel Brotherston
- Noel Campbell
- Noel Coonan
- Noel Ferguson
- Noel Grealish
- Noel Haverty
- Noel Hyndman
- Noel Kelehan
- Noel Kelly (footballer)
- Noel Lane
- Noel Lemass, Jnr
- Noel McCaffrey
- Noel Murphy
- Noel O'Flynn
- Noel Shine and Mary Greene
- Noel Slevin
- Nominated by the Taoiseach
- Nora Connolly O'Brien
- Nora Owen
- Norman Drew
- Norman Rodway
- Norn Iron
- Norry
- Nortel F.C.
- North-West Cup
- North Belfast News
- North Channel (British Isles)
- North County Dublin (Dáil Éireann constituency)
- North Down Cricket Club
- North Eastern Education and Library Board
- North Galway (UK Parliament constituency)
- North Strand
- North Strand Road
- North Tipperary
- North Wall (Dublin)
- Northeast Division Board
- Northern Ireland (Temporary Provisions) Act 1972
- Northern Ireland Act 1998
- Northern Ireland Affairs Committee
- Northern Ireland Ambulance Service
- Northern Ireland Assembly (1973)
- Northern Ireland Assembly election, 1973
- Northern Ireland at the 2006 Commonwealth Games
- Northern Ireland Court Service
- Northern Ireland Grand Committee
- Northern Ireland Housing Executive
- Northern Ireland law
- Northern Ireland Law Commission
- Northern Ireland Region of Shopping Centres
- Northern Ireland Statistics and Research Agency
- Northern Ireland Transport Holding Company
- Northern Ireland Young Communist League
- Northern Irish inventions and discoveries
- Northside People
- Nowlan Park
- NTR plc
- Nuadu Finn Fáil
- Nuadu Necht
- Nuala Fennell
- Nuala McKeever
- Nurney, County Carlow
- Nurney, County Kildare
- Nutgrove
- Nutgrove Shopping Centre
- Nutley Lane
- O' Donnell Park
- O'Briens Irish Sandwich Bars
- O'Briensbridge
- O'Briensbridge-Montpelier
- O'Cahan
- O'Connell Street, Limerick
- O'Connor Park
- O'Davoren
- O'Donovan Rossa (Skibbereen)
- O'Duffy Cup
- O'Neill of Clannaboy
- O'Neills
- Ó Cléirigh
- Ó Dálaigh
- Ó Maolconaire
- Ó Neill
- Ó Siochfhradha
- Oakgrove Integrated College
- Obadiah Williams
- Obel Tower
- Ocean overhead
- Óengus mac Nad Froích
- Óengus Ollom
- Óengus Olmucaid
- Óengus Tuirmech Temrach
- Offaly Express
- Offences against the State Acts 1939-1998
- Office of the First Minister and Deputy First Minister
- Office of the Parliamentary Counsel to Government
- Official Languages Act 2003
- Óglaigh na hÉireann (CIRA splinter group)
- Ogma Press
- Ogonnelloe
- Oideas Gael
- Oisin Fagan
- Old Head of Kinsale
- Old Leighlin
- Old Leighlin (Parliament of Ireland constituency)
- Old Town, County Roscommon
- Olderfleet
- Oldthort
- Olive Loughnane
- Oliver Byrne
- Oliver Gibson
- Oliver Horgan
- Oliver Hughes
- Oliver Lambart, 1st Baron Lambart
- Olivia Mitchell
- Ollamh Síl Muireadaigh
- Ollie Cahill
- Ollie Conmy
- Ollie Murphy
- Ollie Wilkinson
- Ollom Fotla
- Olympic Council of Ireland
- Omagh Academy
- Omagh St. Enda's
- Omero Mumba
- Omni Shopping Centre
- One Day Love
- Oola
- Opportunity Youth
- Oran Kearney
- Orangefield
- Oranmore
- Order of Malta Ambulance Corps
- Oriel House
- Oriel Park
- Orla Brady
- Órla Fallon
- Ormeau Golf Club
- Oscar Andrews
- Ossie Colhoun
- OTT (boyband)
- Oughterard
- Oulart
- Oulart the Ballagh
- Ouley Hill
- Our Lady's College, Greenhills
- Our Lady, Queen of Ireland
- Our Wee Country
- Out of season (Ireland)
- Over Fauscoum
- Owen Butler
- Owen Casey
- Owen Doyle
- Owen Larkin
- Owen Morrison
- Owen Roes O'Neills
- Owen Sheehy-Skeffington
- Owen Walsh
- Owenbeg
- Owenbrean River
- Oxford United Stars F.C.
- Oylegate
- Oysterhaven
- P. J. Bradley
- P. J. Morley
- P. J. Ruttledge
- P. J. Sheehan
- P. R. Mallory and Co Inc
- Paddie Bell
- Paddy Agnew (Irish republican)
- Paddy Agnew (Stormont MP)
- Paddy Bradley
- Paddy Burke
- Paddy Cantillon
- Paddy Carty
- Paddy Christie
- Paddy Doherty
- Paddy Gogarty
- Paddy Harte
- Paddy Holden
- Paddy Kenny
- Paddy Killoran
- Paddy McCarthy
- Paddy McGuigan
- Paddy McHugh
- Paddy O'Brien (gaelic footballer)
- Paddy O'Donovan
- Paddy O'Toole
- Paddy Power (politician)
- Paddy Prenderville
- Paddy Reilly
- Paddy Roche
- Paddy Seery
- Pádraic McCormack
- Padraic McMahon
- Pádraic Ó Conaire
- Pádraig Mac Lochlainn
- Padraig O'Connor
- Pádraig O'Driscoll
- Pádraig Ó Snodaigh
- Padraig Quinn
- Páirc Seán Mac Diarmada
- Páirc Tailteann
- Páirc Uí Chaoimh
- Pallasgreen
- Pallaskenry
- Palmerston Park, Dublin
- Pamela Gallagher
- Panti
- Parish of Dollymount
- Park Avenue (Dublin)
- Park West, Dublin
- Park, County Londonderry
- Parkacunna
- Parkavonear Castle
- Parkgate, County Antrim
- Parkhall College
- Parliament of Southern Ireland
- Parnell Square
- Parnells GAA
- Partry
- Pascal Canavan
- Pascal McConnell
- Paschal Donohoe
- Paschal Mooney
- Paschal Preston
- Passionfruit Theatre
- Pastie
- Pat Barlow
- Pat Barry
- Pat Boran
- Pat Bridson
- Pat Buckley (Aghabullogue hurler)
- Pat Burke
- Pat Canavan
- Pat Carey
- Pat Collier
- Pat Deans
- Pat Delaney (Offaly hurler)
- Pat Doherty
- Pat Gallagher
- Pat Haran
- Pat Hegarty
- Pat Lawlor (hurler)
- Pat Malloy
- Pat McCartan
- Pat McDonagh
- Pat McEnaney
- Pat McGinn
- Pat McLoughney
- Pat McNamee
- Pat McShane
- Pat Moylan
- Pat O'Neill (Dublin footballer)
- Pat O'Shea (author)
- Pat O'Shea (GAA)
- Pat Reilly (footballer)
- Pat Reynolds
- Pat Saward
- Pat Sharkey
- Pat Short
- Patricia Aakhus
- Patricia Driscoll
- Patricia Lynch
- Patricia McLaughlin
- Patrician Secondary School
- Patrick's Causeway
- Patrick Barrett
- Patrick Barrington, 11th Viscount Barrington
- Patrick Beegan
- Patrick Brennan (Garda)
- Patrick Brereton
- Patrick Browne
- Patrick Campbell (INLA member)
- Patrick Cavanagh
- Patrick Clune
- Patrick Connolly
- Patrick Connor (Irish politician)
- Patrick Cooney
- Patrick Cregg
- Patrick Crotty
- Patrick D'Arcy
- Patrick Dineen
- Patrick Dixon (cricketer)
- Patrick Dooley
- Patrick Finucane (Irish politician)
- Patrick Fogarty
- Patrick Gallagher
- Patrick Giles
- Patrick Guiney
- Patrick H. Grace
- Patrick Hogan (Cumann na nGaedhael)
- Patrick Hogan (Farmers Party)
- Patrick Hogan (Tipperary politician)
- Patrick Ireland
- Patrick Joseph McCall
- Patrick Kavanagh
- Patrick Kelly (fiddler)
- Patrick Kelly (footballer)
- Patrick Kerrigan
- Patrick Kinane
- Patrick Kohlmann
- Patrick Lalor
- Patrick Leahy (athlete)
- Patrick Lenihan
- Patrick Little
- Patrick MacGill
- Patrick Masterson
- Patrick McCabe (novelist)
- Patrick McCartan
- Patrick McFadden (Irish politician)
- Patrick McGovern (Irish politician)
- Patrick McWilliams
- Patrick O'Donnell
- Patrick O'Malley (Irish politician)
- Patrick O'Neill
- Patrick O'Scanlan
- Patrick Reynolds (Cumann na nGaedhael)
- Patrick S. Dinneen
- Patrick Shanahan
- Patrick Shea
- Patrick Smith (politician)
- Patrick Street
- Patrick Walker (football manager)
- Patrick Wallace
- Patrickswell
- Patsy Fagan
- Pattern of Urlaur
- Paudge Brennan
- Paudge Connolly
- Paudie Coffey
- Paul Balmer
- Paul Bealin
- Paul Begley
- Paul Bew, Baron Bew
- Paul Bradford
- Paul Burke (rugby player)
- Paul Butler (politician)
- Paul Caffrey
- Paul Carney
- Paul Coghlan
- Paul Crowley (footballer)
- Paul Cunniffe
- Paul Darragh
- Paul Dean (rugby player)
- Paul Duane
- Paul Durcan
- Paul F. Whelan
- Paul Finnegan
- Paul Flynn (footballer)
- Paul Griffin (Gaelic football)
- Paul Howard
- Paul Kehoe
- Paul Leeman
- Paul Maskey
- Paul McAreavey
- Paul McCarthy (footballer)
- Paul McCloskey
- Paul McGrath (politician)
- Paul McGuinness (Northern Irish footballer)
- Paul McKenzie
- Paul McQuaid
- Paul Mooney (cricketer)
- Paul Morgan (footballer)
- Paul Murphy (footballer)
- Paul Orr
- Paul Ramsey
- Paul Shields (Footballer)
- Paul Shiels
- Paul Smyth
- Paul Wallace (footballer)
- Paul Whelan (footballer)
- Paul Williams (Irish journalist)
- Paul Willis
- Paula Farrell
- Pauline Bewick
- Pauline Flanagan
- Pauline McLynn
- Paulstown
- Pavee Point
- Peadar Andrews
- Peadar Carton
- Peadar Clohessy
- Peadar Kirby
- Peadar O'Loughlin
- Peadar Ua Laoghaire
- Pearse Doherty
- Pearse Museum
- Pearse Óg
- Pearse Óg Park
- Pearse Park
- Peep O'Day Boys
- Pegasus Ladies Hockey Club
- Peggy O'Hara
- Peirce Lynch
- Pembroke Road
- Pembroke Township
- People's Park (Waterford)
- People Before Profit Alliance
- Percy Dockrell
- Percy Ludgate
- Percy Smythe, 6th Viscount Strangford
- Peregrine O'Duignan
- Perot de Garbalei
- Perry Blake
- Pete Snodden
- Pete St. John
- Peter Barnes (Irish republican)
- Peter Callanan
- Peter Clarke (cricketer)
- Peter Clohessy
- Peter Collins (sports broadcaster)
- Peter Davy
- Peter Doolan
- Peter Eccles
- Peter Gain
- Peter Galligan
- Peter Horan
- Peter Hughes (politician)
- Peter J. Ward
- Peter Keely (footballer)
- Peter Kelly (Irish politician)
- Peter McCarthy (drummer)
- Peter McColgan
- Peter McDermott
- Peter McDonald
- Peter McGlynn
- Peter McGuffin
- Peter McParland
- Peter O' Meara
- Peter O'Brien, 1st Baron O'Brien
- Peter Power (politician)
- Peter Sands
- Peter Stringer
- Peter Thompson (Northern Irish footballer)
- Peter Weir (politician)
- Peterson Pipes
- Petronilla de Meath
- Pharmaceutical Society Of Ireland
- Phelim Calleary
- Phibsboro
- Phibsborough
- Phil Byrne
- Phil Gray
- Phil Prendergast
- Philadelphia Division Board
- Philip Brennan
- Philip Clarke
- Philip Cosgrave
- Philip Craig (footballer)
- Philip Deignan
- Philip Gorman
- Philip Hollick
- Philip Hughes (Irish footballer)
- Philip Hughes (Northern Irish footballer)
- Philip Johnston (estate agent)
- Philip Magee
- Philip Martin (pianist)
- Philip McCallen
- Philip McDonagh
- Philip Meldon
- Philip Orr
- Philip Pettit
- Phillip de Angulo
- Phillip Jordan
- Phillip O'Rely
- Philly Larkin
- Piaras Béaslaí
- Piaras Feiritéar
- Picturehouse (band)
- Pierce Ferriter
- Piltown
- PJ Gallagher
- Plumbridge
- Plunkett Donaghy
- Pobalscoil Ghaoth Dobhair
- Pobalscoil Neasain
- Pol an Ionain
- Pól Brennan
- Police (Northern Ireland) Act 2000
- Polski Herald
- Pomeroy Plunketts
- Pontoon, County Mayo
- Popery Act
- Port of Waterford
- Portadown F.C.
- Portadown Independent Christian School
- Portadown News
- Portarlington halt
- Portglenone
- Portlaoise Prison
- Portlaoise railway station
- Portlaw
- Portmagee
- Portmore Lough
- Portora Castle
- Portrane
- Portroe
- Portroe GAA
- Portstewart F.C.
- Portstewart Golf Club
- Portstewart Primary School
- Portstewart Strand
- Poulaphouca
- Poulaphouca Reservoir
- Poulnabrone dolmen
- Pound Loney
- Power of Dreams
- Power of One (energy conservation campaign)
- Powerscourt Waterfall
- Premier Dairies
- Premier Power
- Presidential Standard (Ireland)
- Priorstown
- Priory Integrated College
- Privy Council of Ireland
- Procapitalism
- Progressive Building Society
- Proinsias Mac Aonghusa
- Project Arts Centre
- Provincial council
- Provisional Government of the Irish Republic
- PSNI F.C.
- Public Prosecution Service for Northern Ireland
- Puckane
- Puffin Island, Kerry
- Puffin Lightvessel
- Punchestown Racecourse
- Purchase of Land (Ireland) Act 1885
- Purchasers of Forfeited Estates, Ireland Act 1702
- Purple Mountains
- Q Network Radio
- Queen's Bridge
- Queen's Quarter, Belfast
- Queen Elizabeth ll Bridge
- Quigley's Point
- Quin Abbey
- Quin, County Clare
- Quinn School of Business
- Quis separabit?
- R. N. D. Wilson
- R108 road
- R110 road
- R116 road
- R117 road
- R132 road
- R135 road
- R154 road
- R156 road
- R158 road
- R162 road
- R164 road
- R165 road
- R173 road
- R194 road
- R195 road
- R198 road
- R201 road
- R202 road
- R293 road
- R323 road
- R327 road
- R336 road
- R357 road
- R360 road
- R362 road
- R367 road
- R371 road
- R390 road
- R392 road
- R393 road
- R394 road
- R395 road
- R399 road
- R400 road
- R401 road
- R402 road
- R403 road
- R409 road
- R413 road
- R414 road
- R415 road
- R417 road
- R418 road
- R419 road
- R420 road
- R421 road
- R422 road
- R425 road
- R426 road
- R427 road
- R430 road
- R432 road
- R433 road
- R434 road
- R435 road
- R436 road
- R437 road
- R438 road
- R440 road
- R444 road
- R446 road
- R449 road
- R463 road
- R466 road
- R494 road
- R497 road
- R499 road
- R502 road
- R503 road
- R639 road
- R660 road
- R666 road
- R675 road
- R683 road
- R684 road
- R686 road
- R689 road
- R691 road
- R692 road
- R693 road
- R694 road
- R700 road
- R702 road
- R705 road
- R709 road
- R710 road
- R724 road
- R725 road
- R726 road
- R730 road
- R731 road
- R741 road
- R742 road
- R747 road
- R750 road
- R752 road
- R755 road
- R759 road
- R761 road
- R772 road
- R774 road
- Radio 1521
- Raglan Road (street)
- Rahan, County Offaly
- Rahara
- Raharney
- Raheen, County Laois
- Raheen, County Limerick
- Raheen, County Wexford
- Raidió Idirlíon
- Ralph Bryans
- Ram's Island, Northern Ireland
- Ramelton
- Ranafast
- Randal Óg GAA
- Randal Reid
- Randalstown
- Randolph Healy
- Ranelagh
- Rappa Castle
- Ráth Cairn
- Rathacarthen
- Rathbornes Candles
- Rathbraughan
- Rathconrath
- Rathcoole, Dublin
- Rathcormac
- Rathdangan
- Rathdowney
- Rathdowney GAA
- Rathdrum, County Wicklow
- Rathfriland
- Rathfriland Rgrs F.C.
- Rathgar
- Rathgormack
- Rathmichael
- Rathmore, County Kerry
- Rathmullan
- Rathnew
- Rathnure
- Rathoneen
- Rathowen
- Rathvilly
- Ravenhill, Belfast
- Ray Close
- Ray Ferris
- Ray McLoughlin
- Rearcross
- Reask
- Reavey and O'Dowd killings
- Recess, County Galway
- Rechtaid Rígderg
- Recorder of Dublin
- Red Cow interchange
- Red FM (Ireland)
- Red Gap
- Red Keating
- Red lemonade
- Redbreast (whiskey)
- Redcross
- Reggie Corrigan
- Reginald Lyons
- Registration Act
- Reichenau Primer
- Relatives For Justice
- Religion in the Republic of Ireland
- Relish (band)
- Rene Gilmartin
- Renmore
- Renunciation Act
- Repeal (Ireland)
- Repeal Association
- Republic of Loose
- Republican News
- Republican Prisoners Action Group
- Rerrin
- Residents Against Racism
- Rhode, County Offaly
- Rí
- Riada Stadium, Ballymoney
- Ribbonism
- Richard Barrett (poet)
- Richard Barter
- Richard Boyd Barrett
- Richard Browne (hurler)
- Richard Callaghan (Football)
- Richard Clarke (footballer)
- Richard Collins, Baron Collins
- Richard Corish
- Richard Corrigan
- Richard de Exeter
- Richard FitzWilliam, 7th Viscount FitzWilliam
- Richard Graham (footballer)
- Richard Hayes (Irish politician)
- Richard Hughes (jockey)
- Richard Johnson (judge)
- Richard Johnston (judge)
- Richard Keaveney
- Richard Lambart, 2nd Earl of Cavan
- Richard Martin fitz Oliver
- Richard Milliken
- Richard Mor de Burgh
- Richard Moynan
- Richard O'Kennedy
- Richard Og Burke
- Richard P.C. Hanson
- Richard Parsons, 1st Earl of Rosse
- Richard Pockrich (inventor)
- Richard Pockrich (MP)
- Richard Power (Irish politician)
- Richard Ryan (diplomat)
- Richard Stirling
- Richard Trench, 2nd Earl of Clancarty
- Richard Tyrell
- Richard Wallace (rugby player)
- Richard Walsh
- Richie Connor
- Richie Mullally
- Richie Reid
- Richie Ryan (footballer)
- Richmond Centre (Derry)
- Rick Whelan
- Ring, County Waterford
- Ringaskiddy
- Ringsend
- Risteárd Cooper
- River Bandon
- River Bann
- River Camac
- River Camcor
- River Clare
- River Cong (Ireland)
- River Dargle
- River Deel
- River Dodder
- River Drish
- River Dun
- River Erne
- River Eske
- River Farset
- River Feale
- River Fergus
- River Finn
- River Garavogue
- River Glyde
- River Inny
- River Laune
- River Lee (Ireland)
- River Mahon
- River Maigue
- River Mourne
- River Moy
- River Nore
- River Owenabue
- River Quoile
- River Rye (Ireland)
- River Slaney
- River Suck
- River Sullane
- River Swilly
- River Tall
- River Tolka
- River Torrent
- River Vartry
- Riverchapel
- Riverside Theatre, Coleraine
- Riverstown
- Riverstown (near Birr)
- Rob Henderson
- Robbie Best
- Robbie Brennan
- Robbie Brunton
- Robbie Cooke
- Robbie Doyle
- Robbie Dunne
- Robbie Kelleher
- Robbie Kelleher (soccer player)
- Robbie Millar
- Robbie O'Malley
- Robbie Ryan
- Robert Adair (cricketer)
- Robert Alexander (cricketer)
- Robert Barber
- Robert Barnes (cricketer)
- Robert Bayly
- Robert Bowers
- Robert Briscoe (politician)
- Robert Browne (musician)
- Robert Cane
- Robert Clements, 1st Earl of Leitrim
- Robert Daly (sprinter)
- Robert Donovan
- Robert Duggan
- Robert Dunlop
- Robert Elgie (academic)
- Robert Emmets GAC
- Robert Fagan
- Robert Garrett (footballer)
- Robert Gibbings
- Robert Greacen
- Robert Gwynn
- Robert Halpin
- Robert Hamilton (Irish footballer)
- Robert Harty
- Robert Heffernan
- Robert Henry Woods
- Robert Kearney
- Robert Lloyd Praeger
- Robert McCall (lawyer)
- Robert Michael Sheehan
- Robert Moore (politician)
- Robert Owenson
- Robert Richard Warren
- Robert Rowlette
- Robert Shaw (politician)
- Robert Taylour
- Robert Wauchope (archbishop)
- Robert Yelverton Tyrrell
- Robin Chichester-Clark
- Robin Newton
- Robin Vane-Tempest-Stewart, 8th Marquess of Londonderry
- Rock formations in Ireland
- Rock St. Patrick's
- Rockabill
- Rockbrook
- Rockchapel
- Rockcorry
- Rockfleet Castle
- Rockmills
- Rockport School
- Rockwell College
- Rocky Island (Cork)
- Rod De Khors
- Roderic O'Conor
- Roderick Flynn
- Roderick Gill
- Rodney Bernstein
- Rodney O'Donnell
- Roesy
- Rogallach mac Uatach
- Rogerstown Estuary
- Róisín McAliskey
- Roisin McGettigan
- Roll of Honour (song)
- Roly Meates
- Roma Ryan
- Roman Catholic Diocese of Derry
- Roman Catholic Diocese of Galway, Kilmacduagh and Kilfenora
- Roman Catholic Diocese of Raphoe
- Ronan Brennan
- Ronan Coghlan
- Rónán Fallon
- Ronan Hardiman
- Rónán mac Colmáin
- Rónán Mullen
- Ronan O'Rahilly
- Rónán Ó Snodaigh
- Ronnie Drew
- Rooney Prize for Irish Literature
- Roosky
- Rooster potato
- Rory Best
- Rory Carroll
- Rory Delap
- Rory Kavanagh
- Ros-mic-Triuin
- Rosanna Davison
- Rosario YC F.C.
- Roscommon
- Roscommon-Leitrim (Dáil Éireann constituency)
- Roscrea GAA
- Rose Neill
- Roseberry GAA
- Rosegreen
- Rosenallis
- Rosetta, Belfast
- Rosmuck
- Ross Carr
- Ross Castle
- Ross Port
- Rossaveal
- Rosscarbery
- Rosses Point
- Rossinver
- Rosslare Harbour
- Rosslare Strand
- Rossmore Castle
- Rossport
- Rostellan
- Rothechtaid Rotha
- Rotimi Adebari
- Rotten Island
- Rotunda Hospital
- Roughfort
- Round Towers GAA Clondalkin
- Roundwood
- Rousky
- Rowallane Garden
- Rowan Rait Kerr
- Rower-Inistioge GAA
- Rowlan
- Rowland FitzEustace, 1st Baron Portlester
- Rowland Ponsonby Blennerhassett
- Roxboro, Limerick
- Roy Torrens
- Roy Walker (footballer)
- Royal Arch Purple
- Royal Canal
- Royal College of Science for Ireland
- Royal Courts of Justice, Belfast
- Royal Irish Academy of Music
- Royal Irish Yacht Club
- Royal North of Ireland Yacht Club
- Royal Oak, County Carlow
- Royal Portrush Golf Club
- Royal Ulster Yacht Club
- Royal Victoria Hospital, Belfast
- RTÉ Aertel
- RTÉ Concert Orchestra
- RTÉ Digital Radio Sport
- RTÉ Guide
- RTÉ lyric fm
- Ruaidhri Higgins
- Ruaidri mac Cathal Ua Conchobair
- Ruan County Clare
- Ruarc mac Bran
- Ruari Og GAC
- Ruben of Dairinis
- Rudraige mac Sithrigi
- Rundale
- Rusheen Bay
- Ruth Negga
- Ryan Caldwell
- Ryan Farquhar
- Ryan Harpur
- Ryan McGarvey
- Ryan McIlmoyle
- Ryan Mellon
- Ryan Semple (Northern Irish footballer)
- Rylane
- Sack of Athenry
- Sack of Baltimore
- Sack of Dun Gallimhe
- Saggart
- Saint Benan
- Saint Ceallach
- Saint Colman (martyr)
- Saint Conal
- Saint Davnet
- Saint Dichu
- Saint Eoghan
- Saint Fachanan
- Saint Felim
- Saint Flannan
- Saint Fothad
- Saint Ibar
- Saint Kiara
- Saint Modan
- Saint Murtagh
- Saint Nathy
- Saint Patrick's, Newry
- Saint Patrick Visitor Centre
- Saint Totnan
- Saint Trea's Primary School
- Saintfield High School
- Saintfield Utd F.C.
- Sallybrook
- Saltee Islands
- Salthill
- Salthill-Knocknacarra
- Sam McCrory
- Sam Morrow
- Sam Russell (footballer born 1900)
- Sam Stephenson
- Sam Storey
- Samantha Power (actress)
- Sammy Chapman
- Sammy Jones (footballer)
- Sammy Miller
- Sammy Morgan
- Sammy Ward
- Samuel Boddington
- Samuel Cunningham
- Samuel Edgar
- Samuel Henry Butcher
- Samuel Madden
- Samuel Shumack
- Sancta Maria College
- Sandy Row
- Sandycove
- Sandycove Island
- Sandyford Industrial Estate
- Sandymount
- Sandymount Avenue
- Sandymount High School
- Saoirse
- Saoirse na hÉireann
- Saoirse Ronan
- Sara Allgood
- Sara Anne McLagan
- Sarah Curran
- Sarah Grand
- Sarah O'Flaherty
- Sarah Purser
- Sarsfield's GAA (Cork)
- Sarsfield Barracks
- Saul, County Down
- Sawel Mountain
- Scarnagh
- Scattery Island Cathedral and Monastery
- Scéla Cano meic Gartnáin
- Scenes (the band)
- School of Medicine and Medical Science (University College Dublin)
- Science Week Ireland
- Scoil Barra
- Scoil Chaitriona
- Scoil Chaitríona Senior
- Scoil Lorcáin
- Scoil Mhuire, Clane
- Scoil na gCláirseach
- SCOPE (TV series)
- Scór
- Scotch Street
- Scotia
- Scotland GAA
- Scott Evans (badminton player)
- Scott Fitzgerald (footballer)
- Scott Fredericks
- Scouting in Ireland
- Scrabo Tower
- Scraggane
- Scramogue Ambush
- Scrap Saturday
- Scrarour
- Screeb
- Scullion (group)
- Seamus Browne
- Séamus Burke
- Seamus Coleman
- Seamus Daly
- Séamus Darby
- Seamus Fanneran
- Séamus Healy
- Séamus Hickey
- Séamus Hughes
- Séamus Kirk
- Séamus Looney
- Seamus Malin
- Seamus Mallon (rugby player)
- Seamus McDonagh
- Seamus McMahon
- Seamus Moore
- Seamus O'Sullivan
- Seamus Prendergast
- Sean's Bar
- Sean 'ac Donncha
- Seán Ardagh
- Seán Boylan
- Seán Clancy
- Sean Cleary
- Seán Clohessy
- Seán Condon
- Seán Connick
- Sean Connor
- Sean Cooney
- Seán Cronin
- Seán Crowe
- Sean Dillon (footballer)
- Seán Doherty (GAA player)
- Seán Dolans GAC
- Seán Dorgan
- Seán Dunne
- Seán Fleming
- Sean Friars
- Seán Geaney
- Sean Godley
- Sean Hargan
- Sean Hughes (Irish republican)
- Sean Hurley
- Seán Keane (fiddler)
- Seán Keenan
- Sean Kelly (footballer born 1987)
- Seán Kenny
- Sean L'Estrange
- Seán Lane
- Sean Lynch (rugby player)
- Seán MacManus
- Sean McCarthy
- Seán McGuinness
- Sean McIlvenna
- Seán Milroy
- Seán Murphy (footballer)
- Sean Murray (Irish republican)
- Seán O'Brien
- Seán O'Connor
- Seán O'Grady
- Sean O'Leary (Irish politician)
- Seán O'Neill Band
- Seán Ó Ceallaigh
- Seán Ó Faoláin
- Seán Ó Fearghail
- Seán Ó Neachtain
- Seán Ryan (Irish fiddler)
- Seán Sherlock
- Seán Sherwin
- Seán Smyth
- Sean St Ledger
- Seán Treacy
- Sean Webb
- Seánie Barry
- Seapoint
- Seascapes
- Seaview Primary School
- Sebastian Barry
- Seefin Mountain
- Selina Bunbury
- Senan Connell
- Senchineoil
- Sengann mac Dela
- Seomra Spraoi
- Seraphim (Irish group)
- Serpentine Avenue
- Seskinore
- Sétna Innarraid
- Seumas O'Kelly
- Seven Hogs
- Seven Sisters, Donegal
- Seymour Crawford
- Shaftesbury, Belfast
- Sham Rock
- Shammer
- Shamrock Lodge
- Shamrock Park
- Shanagarry
- Shanaghy
- Shandon, Cork
- Shandon, Dublin
- Shane Duff
- Shane Durkin
- Shane Grimes
- Shane Harte
- Shane Horgan
- Shane Long
- Shane Lowry
- Shane McEntee
- Shane McFaul
- Shane McGeown
- Shane O'Neill (hurler)
- Shane Ross
- Shane Supple
- Shane Tracy
- Shankill Defence Association
- Shanmaghery
- Shannon-Erne Waterway
- Shannon Development
- Shannon Estuary
- Shannon FIR
- Shannon Harbour
- Shannon Olympic
- Shantallow
- Sharon Corr
- Shaun Carey
- Shaun Holmes
- Shaun Jeffares
- Shaw's Road
- Shea Fahy
- Sheemore ambush
- Sheephaven Bay
- Sheeptown
- Sheila Galvin
- Sheila O'Flanagan
- Sheila O'Sullivan (actress)
- Sheila Terry
- Shelbourne Development
- Shelbourne, Dublin
- Shelmalier
- Shenick Island
- Shenick Network Systems
- Sheriff Street
- Sheskin
- Shielmartin Hill
- Shillelagh, County Wicklow
- Shimna River
- Shinrone
- Shirley Temple Bar
- Showgrounds
- Shrone Hill
- Shrule
- Sid Burrows
- Sid Rainey
- Siege of Athlone
- Sigerson Clifford
- Sign Language Centre Belfast
- Síl nÁedo Sláine
- Silver River (Ireland)
- Silverbridge, County Armagh
- Silvermines
- Simon Behan
- Simon Best
- Simon Casey
- Simon Corlett
- Simon Coveney
- Simon Curley
- Simon Delaney
- Simon Geoghegan
- Simon Hamilton
- Simon McAleer Memorial Tournament
- Simon Rowe
- Simple Kid
- Sinéad Cusack
- Sinéad Lohan
- Sinn Féin (19th century)
- Sinn Féin (Gardiner Place)
- Sinn Féin (newspaper)
- Siobhan Creaton
- Siobhán Hoey
- Siobhán McCarthy
- Siobhán Parkinson
- Siomón Brecc
- Sir Anthony Esmonde, 15th Baronet
- Sir Arthur Gore, 1st Baronet
- Sir Edward Sullivan, 1st Baronet
- Sir Henry Robinson, 1st Baronet
- Sir James Somerville, 1st Baronet
- Sir John Keane, 5th Baronet
- Sir John Rogerson
- Sir Joseph Napier, 1st Baronet
- Sir Osmond Esmonde, 12th Baronet
- Sir Ralph Gore, 4th Baronet
- Sir Richard de Exeter
- Sir Rowland Blennerhassett, 4th Baronet
- Sir Thomas Burke, 3rd Baronet
- Sir Thomas Drew
- Sir Ulick Burke, 3rd Baronet
- Sir William Cusack-Smith, 2nd Baronet
- Sir William Moore, 1st Baronet
- Sírlám
- Sírna Sáeglach
- Siún Nic Gearailt
- Six (band)
- Six Mile Water
- Sixmilecross
- SJ Michaels
- Skara Brae (music)
- Skea, County Fermanagh
- Skeatry
- Skehana
- Skelpin
- Skenakilly
- Skindive
- Skreen
- Skryne
- Slaine Kelly
- Slàinte
- Slán Abhaile
- Slánoll
- Slaughtmanus GAC
- Slaughtneil GAC
- Slemish
- Sletty
- Sliabh Luachra
- Slieve Bearnagh
- Slieve Binnian
- Slieve Bloom Mountains
- Slieve Carr
- Slieve Foy
- Slieve Gullion
- Slieve League
- Slieve Mish Mountains
- Slieve Miskish Mountains
- Slieve Muck
- Slieve na Calliagh
- Slieve Snaght
- Slieveanorra forest
- Slieveboy
- Slievemaan
- Slievemore
- Slievenamon
- Slieverue
- Sligo-Mayo East (Dáil Éireann constituency)
- Sligo-North Leitrim (Dáil Éireann constituency)
- Sligo (Dáil Éireann constituency)
- Sligo Abbey
- Sligo Early Music Ensemble
- Sligo General Hospital
- Sligo Post
- Sligo Weekender
- Sligo Yacht Club
- Slyne Head Lighthouse
- Smith Hill (house)
- Social and Personal
- Soghain
- Soloheadbeg
- Somerset Lowry-Corry, 2nd Earl Belmore
- Somewhere In Europe
- Sonny Knowles
- Sooey
- Sorcha
- South Anne Street
- South Armagh Republican Action Force
- South Circular Road (Dublin)
- South County Dublin (Dáil Éireann constituency)
- South Derry Independent Republican Unit
- South Tipperary
- Southill, Limerick
- Southside People
- Spa, County Down
- Spáilpín
- Spamount
- Spanish Arch
- Spanish Point
- Special Detective Unit
- Special Powers Act
- Spencer Dock
- Sperrins
- Spiddal
- Spike Island, County Cork
- Spirit grocery
- Spotlight (NI)
- Spranger Barry
- Springfield, County Fermanagh
- Springhill (Bangor suburb)
- Springhill Primary School
- St Augustine's and Good Counsel College, New Ross
- St Cecilia's College
- St Colm's High School, Draperstown
- St Conleths Ladies Football
- St Eugene's College
- St Feckins
- St Finian's Church of Ireland
- St Finian's Primary School
- St Gemma's High School
- St George's Channel
- St George's Market
- St Grellan's GFC
- St John's Road East
- St Joseph's Boys' High School
- St Joseph's High School, Coalisland
- St Malachy's High School, Antrim
- St Marks GAA Club
- St Mary's High School (Limavady)
- St Mcdaras Community College
- St Olcan's High School
- St Peter's College, Wexford
- St Philomena's National School, Ravenswell
- St Sylvesters
- St. Aidan's C.B.S.
- St. Benedicts Harps GAC
- St. Brendan's Park
- St. Brigid's Primary School, Belleek
- St. Brigid's Primary School, Crossmaglen
- St. Colman's Primary School, Dromore
- St. Colman's Primary School, Saval
- St. Colum's Primary School
- St. Conal's Psychiatric Hospital
- St. Conleth's College
- St. Conleth's Park
- St. Cronan's Boys National School
- St. Dallan's Primary School
- St. Dominic's High School
- St. Finbarr's College, Farranferris
- St. Finbarr's GAA
- St. Fintan's Cemetery, Sutton
- St. James' Primary School, Tandragee
- St. James's Gate
- St. Jarlath's College
- St. Jarlath's Park
- St. John's Cathedral, Limerick
- St. John's Eve
- St. John's Primary School, Newry
- St. John Greer Ervine
- St. Joseph's Boys' School
- St. Joseph's Industrial School, Letterfrack
- St. Joseph's Primary School, Cookstown
- St. Joseph's Secondary School (Navan)
- St. MacNissi's Primary School
- St. Malachy's Primary School, Camlough
- St. Martin's GAA
- St. Mary's College, Galway
- St. Mary's Grammar School
- St. Mary's Park (Limerick)
- St. Mary's Primary School, Ballyward
- St. Mary's Primary School, Fivemiletown
- St. Michael's Hospital, Dun Laoghaire
- St. Michael's Loreto Secondary School (Navan)
- St. Oliver Plunkett's Primary School, Forkhill
- St. Patrick's Academy, Dungannon
- St. Patrick's and St. Brigid's College
- St. Patrick's College of Education (Drumcondra)
- St. Patrick's College, Belfast
- St. Patrick's Grammar School, Downpatrick
- St. Patrick's Primary School, Cullyhanna
- St. Patrick's Primary School, Mayobridge
- St. Patrick's Street
- St. Patricks GAA Palmerstown
- St. Patricks, Greencastle
- St. Paul's College, Raheny
- St. Peter's Community School, Cork
- St. Peter's Primary School, Charlemont
- St. Peter's Roman Catholic Church, Drogheda
- St. Rynagh's GAA
- St. Stephens' Church (Mount Street Dublin)
- St. Teresa's Primary School, Mountnorris
- St. Tiernach's Park
- St. Vincent's University Hospital
- St.Columbanus School (Bangor)
- Staigue stone fort
- Stalag 17 (band)
- Stamullen
- Standards in Public Office Commission
- Standish Hayes O'Grady
- Standish James O'Grady
- Standish O'Grady, 1st Viscount Guillamore
- Stanislaus Kennedy
- Stanley Bergin
- Stanley Hewitt
- Stanley Pettigrew
- State Heraldic Museum
- State Hospital for Scotland and Northern Ireland
- Steelstown GAC
- Stefan McKevitt
- Stefan White
- Stephen Bray (GAA player)
- Stephen Byrne
- Stephen Carson
- Stephen Collins (journalist)
- Stephen Cooling
- Stephen Coughlan
- Stephen de Exeter
- Stephen De Vere
- Stephen Doran
- Stephen Elliott (footballer)
- Stephen Farry
- Stephen Ferris (Footballer)
- Stephen Ferris (rugby player)
- Stephen Finnegan
- Stephen Fuller
- Stephen Garrett
- Stephen Geoghegan
- Stephen Gleeson
- Stephen Gollogly
- Stephen Hayes (hurler)
- Stephen Hiney
- Stephen Hurley
- Stephen J. Martin
- Stephen Kelly
- Stephen Lucey
- Stephen MacKenna
- Stephen Maher
- Stephen Martin (field hockey)
- Stephen McCrossan
- Stephen Murphy (footballer)
- Stephen O'Brien (footballer)
- Stephen O'Flynn
- Stephen Quinn
- Stephen Smyth
- Steva Riordan
- Steve Brennan
- Steve Lomas
- Steve Penney (footballer)
- Steve Robinson (footballer)
- Steven Collins
- Steven Douglas (footballer)
- Steven Foley-Sheridan
- Steven O'Leary
- Stevens Report
- Stewart Castle
- Stewart McKinney (rugby player)
- Stewartstown Harps
- Stickens
- Stockton's Wing
- Stoneybatter
- Stoneyford, County Antrim
- Stoneyford, County Kilkenny
- Stormont Castle
- Stormont House
- Stormont, Belfast
- Strabane (Parliament of Ireland constituency)
- Strabane Sigersons
- Stradbally
- Strade
- Straidarran
- Straits of Moyle
- Strand Cinema
- Strandhill
- Strandtown Primary School
- Strangford
- Stranmillis
- Stranmillis Primary School
- Stranocum
- Stranorlar
- Stranorlar Vocational School
- Stratford-on-Slaney
- Strathearn School
- Straw, County Londonderry
- Streamstown
- Street, County Westmeath
- Streets Ahead
- Strokestown
- Structure of the Gaelic Athletic Association
- Strule (Electoral Ward)
- Stuart Addis
- Stuart Byrne
- Stuart Robinson
- Sue Denham
- Sue Ramsey
- Sugarloaf Hill (Knockmealdowns)
- Sugarloaf, Cork
- Sugarloaf, West Wicklow
- Sugrue
- Summer Cove
- Summerhill, County Meath
- Sunburst flag
- Suncroft
- Sunday World (old newspaper)
- Sunrise Radio, Ireland
- Supreme Court of Judicature Act 1877
- Supreme Court of the Irish Free State
- Surly (band)
- Surrender and regrant
- Susan Denham
- Susan Pollexfen
- Sutton Creek
- Sutton Park School
- Sutton Park, Dublin
- Sutton, Dublin
- Swanlinbar
- Swatragh
- Swatragh GAC
- Sweeney's Men
- Sweet Savage
- Sydenham, Belfast
- Sydney Parade Avenue
- Sylvie Linnane
- T. A. Denny
- T. C. Murray
- T. P. McKenna
- Table Mountain, County Wicklow
- Tadhg mac Muirchertach
- Tadhg Murphy
- Tadhg O'Connor
- Tadhg Ó Cianáin
- Taghshinny
- Taillten Fair
- Tailteann Games
- Tairrdelbach mac Ruaidri Ua Conchobair
- Take Him Home
- Talbot Memorial Bridge
- Tallaght Stadium
- Tallaght Strategy
- Tallow GAA
- Tallow, County Waterford
- Tamas Szecsi
- Tamlaght, County Fermanagh
- Tamlaght, County Londonderry
- Tamnaherin
- Tamnamore
- Tamnamore Primary School
- Tanaide Mor mac Dúinnín Ó Maolconaire
- Tanaide Ó Maolconaire
- Tandragee Rovers F.C.
- Tang, County Westmeath
- Taoiseach's residence
- Tara Hill, County Wexford
- Tarbert, County Kerry
- Tarlach Mac Suibhne
- Tartaraghan
- Tattyreagh St. Patrick's
- Taughmaconnell
- Tayto (Northern Ireland)
- Teaching qualification
- Teagasc
- Tearaght Island
- Ted Nealon
- Ted Walsh
- Teelin
- Teemore
- Telltown
- Templebryan Stone Circle
- Templemichael
- Templemore
- Templemore railway station
- Templemore, Clonmore and Killea (Catholic Parish)
- Templenoe
- Tennis Ireland
- Tenth Amendment of the Constitution Bill, 1986
- Terence de Vere White
- Terence Flanagan
- Terence MacManus
- Terence McNaughton
- Terrence Slowey
- Terry Conroy
- Terry Flanagan
- Terry Kelly (footballer)
- Terry Leyden
- Terry Magee
- Terry McHugh
- Terry Woods
- Terryglass
- Terryland Park
- Thady O'Connor
- That's What Friends Are For (Eurovision song)
- The 4 Of Us
- The American Ireland Fund
- The Atrix
- The Birches, County Armagh
- The Black Valley
- The Botanic Inn
- The Bothy Band
- The Brilliant Trees
- The Cake Sale
- The Chaine Memorial
- The Clanricarde
- The Cope Primary School
- The Coronas
- The Curragh of Kildare
- The Demise
- The Destruction of Da Derga's Hostel
- The Diamond, Enniskillen
- The Double (Gaelic games)
- The Driven
- The Dubs - Dublin GAA since the 1940s
- The Duggans
- The East Coast Angels
- The Echo (Irish Newspaper)
- The Educational Company of Ireland
- The Fat Lady Sings (band)
- The Fatima Mansions
- The Fureys
- The Gaiety School of Acting
- The Golden Horde (band)
- The Great Book of Ireland
- The Great Book of Irish Genealogies
- The Harrow, County Wexford
- The Honourable The Irish Society
- The Hooded Gunman
- The Impartial Reporter
- The Irish Echo
- The IRS
- The Jab
- The Johnstons
- The Kerryman
- The Laois Voice
- The Limelight (Belfast)
- The Marshals
- The Meadow, Newry
- The Middlewich Paddies
- The Mount, Belfast
- The Mullet
- The Mumbles
- The North/South Language Body
- The Northern Whig
- The O'Higgins
- The Orange And The Green
- The Pattersons
- The Peoples' Park, Ballymena
- The Phoenix (magazine)
- The Pope's Children
- The Radiators From Space
- The Real Me (Eurovision song)
- The Redneck Manifesto (band)
- The Rose of Mooncoin
- The Rower
- The Secret Rose
- The Sligo Champion
- The Spikes
- The Square, Dublin
- The Stag's Head
- The Starry Plough (newspaper)
- The Stiff Kitten
- The Sunday Business Post
- The Swan, County Laois
- The Three Sisters (Ireland)
- The Troubles in Castlerock
- The Troubles in Donaghmore
- The Troubles in Dromore (Down)
- The Undertones (album)
- The Vancouver Irish Sporting and Social Club
- The Wages of Love
- The Watertower Conspiracy
- The White Stag group
- The Wonderful Barn
- Thelma Hopkins (athlete)
- Theobald Dillon, 7th Viscount Dillon
- There Were Roses
- Theresa Lennon Blunt
- Thinus Fourie
- Third Amendment of the Constitution Bill, 1958
- Third Amendment of the Constitution Bill, 1968
- Thirteenth Amendment of the Constitution of Ireland
- Thomas 'Ta' Power
- Thomas Barnwall Martin
- Thomas Bolger
- Thomas Brennan (Fianna Fáil)
- Thomas Brennan (Irish Land League)
- Thomas Buchanan (Unionist politician)
- Thomas Burke (artist)
- Thomas Burke (Clare politician)
- Thomas Byrne (Meath politician)
- Thomas Carey (cricketer)
- Thomas Caulfield
- Thomas Caulfield Irwin
- Thomas Coulter
- Thomas Dixon (cricketer)
- Thomas Dunne
- Thomas Ellis
- Thomas Flanagan (Irish politician)
- Thomas Francis Hendricken
- Thomas Grubb
- Thomas Harris (Irish politician)
- Thomas Heary
- Thomas Heazle Parke
- Thomas Hennessy
- Thomas Hone
- Thomas J. Fitzpatrick (Cavan politician)
- Thomas Johnson (Irish politician)
- Thomas Malton
- Thomas McCarthy (poet)
- Thomas McGauley
- Thomas McGrath (builder)
- Thomas McLoughlin
- Thomas McMahon
- Thomas Moles
- Thomas Morgan (footballer)
- Thomas Myles
- Thomas Niblock
- Thomas O'Mahony
- Thomas O'Shaughnessy
- Thomas Preston (scientist)
- Thomas Purcell of Loughmoe
- Thomas Sadleir
- Thomas Street (Dublin)
- Thomas Walsh (Irish politician)
- Thomas Westropp Bennett
- Thomastown (Parliament of Ireland constituency)
- Thomond deeds
- Thormanby Road
- Thornhill College
- Three Collas
- Thurles railway station
- Tia Keyes
- Tibradden
- Tibradden Mountain
- Tichborne Aston
- Tiernan Mulvenna
- Tievebulliagh
- Tigernán Ua Ruairc
- Tim Barker
- Tim Clancy
- Tim Dalton
- Tim McCann (footballer)
- Tim Mouncey
- Tim O'Shea (footballer)
- Tim Pat Coogan
- Timahoe
- Timmy Adamson
- Timmy Dooley
- Timoleague
- Timoleague Friary
- Timothy Ahearne
- Timothy Daniel Sullivan
- Timothy Harrington
- Timothy J. Murphy
- Timothy O'Connor
- Timothy O'Keeffe
- Timothy O'Sullivan (Irish politician)
- Tinahely
- Tinryland
- Tintern Abbey (County Wexford)
- Tiocfaidh ár lá
- Tipperary (Dáil Éireann constituency)
- Tipperary Mid, North and South (Dáil Éireann constituency)
- Tír Conaill
- Tirconaill Tribune
- Tírechán
- Tirnaneill
- Tithe Bill
- Tobergill
- Togher
- Toirdelbach Ua Briain
- Toireasa Ferris
- Tola of Clonard
- Tom Court
- Tom Enright
- Tom Feeney (hurler)
- Tom Garvin
- Tom Hales
- Tom Hayes
- Tom Healy
- Tom Herron
- Tom Hickey
- Tom Kelleher
- Tom Kiernan
- Tom Kivlehan
- Tom McCaughren
- Tom McCormack
- Tom McEllistrim III
- Tom McEllistrim, Snr
- Tom McGurk
- Tom Mitchell
- Tom Moffatt
- Tom Mohan
- Tom Morrissey
- Tom Murphy (actor)
- Tom Nolan
- Tom O'Brannigan
- Tom O'Donnell
- Tom O'Donoghue
- Tom O'Higgins
- Tom O'Sullivan (hurler)
- Tom Ross (cricketer)
- Tom Sheahan
- Tom Sheridan
- Tom Spillane
- Tom Toomey
- Tomás Bairéad
- Tomás Brady
- Tomás Freeman
- Tomás O'Leary
- Tomás Ryan
- Tommy Barrett
- Tommy Broughan
- Tommy Byrne (Formula One)
- Tommy Carr
- Tommy Carroll
- Tommy Collins
- Tommy Dickson
- Tommy Doherty
- Tommy Dowd (footballer)
- Tommy Gaynor
- Tommy Houston (footballer)
- Tommy J. Wright
- Tommy Kelly (footballer)
- Tommy McGuigan
- Tommy McGuinness
- Tommy McGuire
- Tommy Murphy Cup 2007
- Tommy Peoples
- Tommy Robb
- Tommy Stewart (footballer)
- Tonelagee
- Tonie Walsh
- Tony Adams (producer)
- Tony Byrne
- Tony Connolly
- Tony Coulson
- Tony Dempsey
- Tony Doyle
- Tony Dunne
- Tony Galvin
- Tony Guilfoyle
- Tony Kett
- Tony Lundon
- Tony McLoughlin
- Tony Moynihan
- Tony O'Shaughnessy
- Tony Scullion
- Tony Scully
- Tony Sheridan (footballer)
- Toomevara
- Toorlestraun
- Top of the Hill Celtic F.C.
- Torc Mountain
- Torc Waterfall
- Toronto GAA
- Toss The Feathers
- Tourism Ireland
- Tourmakeady College
- Tournafulla
- Tower, County Cork
- Townleyhall passage grave
- Traad
- Traditional Unionist Voice
- Tragumna
- Tralee (Parliament of Ireland constituency)
- Tralee Bay
- Tralee Mitchels
- Translink (Northern Ireland)
- Trasna na dTonnta
- Treaty City Titans
- Treaty Ports (Ireland)
- Trevor Anderson
- Trevor Brennan
- Trevor Britton
- Trevor Carson
- Trevor Clarke
- Trevor Giles
- Trevor Hill, 1st Viscount Hillsborough
- Trevor Hutchinson
- Trevor Kirkland
- Trevor Leaker
- Trevor Ringland
- Trevor Vaughan
- Triggerman (band)
- Trillick St. Macartan's
- Trim (Parliament of Ireland constituency)
- Trinity Gaels
- Trinity Hall, Dublin
- Tritonville Road
- Trócaire
- Trojans F.C.
- Trory
- Trummer
- TS O'Rourke
- Tuamgraney
- Tuatha Taiden
- Tubber, Ireland
- Tubberclare
- Tullaghan
- Tullamore Dew
- Tullaroan
- Tullavilla
- Tullow
- Tully Castle
- Tullyallen
- Tullygally Primary School
- Tullyhaw
- Tullyhogue
- Tullynacross
- Tullywiggan
- Tulrahan
- Tulrush
- Tulsk
- Turloughmore
- Turners Cross, Cork
- Turning Point (institute)
- Turoe stone
- Tuskar Rock
- Twelfth Amendment of the Constitution Bill, 1992
- Twelve Apostles of Ireland
- Twelve Bens
- Twenty-fifth Amendment of the Constitution Bill, 2002
- Twenty-fourth Amendment of the Constitution Bill, 2001
- Twenty-second Amendment of the Constitution Bill, 2001
- Twinbrook, Belfast
- Two-Mile Borris
- Two Nations Theory (Ireland)
- Two Rock
- Tydavnet
- Tyholland
- Tyrone Crystal
- Tyrone Guthrie Centre
- Tyrone House
- Tyrone Howe
- Tyrrellspass
- Tyrrelstown
- U.U.J. F.C.
- UCD GAA
- Údarás na Gaeltachta
- Úgaine Mór
- Uí Cheinnselaig
- Uí Dúnlainge
- Uí Garrchon
- Uí Ímair
- Uí Maine
- Uilliam Ó Duinnín
- Uisce Beatha
- Ulick Burke (politician)
- Ulick Burke of Annaghkeen
- Ulick Burke of Umhaill
- Ulick Joseph Bourke
- Ulick McEvaddy
- Ulick O'Connor
- Ulster-Scots Agency
- Ulster Army Council
- Ulster GAA
- Ulster Hall
- Ulster Hospital
- Ulster Says No
- Ulster Society for Promoting the Education of the Deaf and the Blind
- Ulster Tatler
- Ulster Unionist Labour Association
- Ulster Way
- Ulsterisation
- Uluti
- Umbro Galway Cup
- Under-Secretary for Ireland
- Under 21 Football League of Ireland
- Union Hall
- United Campaign Against Plastic Bullets
- United Irishman
- United Park
- University College Hospital Galway
- University Hall (Dublin)
- Upper Ballinderry
- Upper Springfield
- Upperchurch
- Uragh Stone Circle
- Urhan
- Urney St. Columba's
- Urris
- Val Andrews
- Valentine Greatrakes
- Valentine Hollingsworth
- Veda Beaux Reves
- Ventry
- Venus Envy (Irish band)
- Verbal Arts Centre
- Verbena, Dublin
- Vicarstown
- Vice Great Seneschal of Ireland
- Victor Barry
- Victor Costello
- Victor Craig
- Victor Griffin
- Victor Hunter
- Victoria Bridge, County Tyrone
- Victoria Niarchos
- Victoria Smurfit
- Victoria Square, Belfast
- Vilbaldr DufÞakrsson
- Village (magazine)
- Villierstown
- Vince Cunningham
- Vincent Dowling
- Vincy Twomey
- Vinnie Murphy
- Vinny Arkins
- Vinny Perth
- Vinny Sullivan
- Violet Gibson
- Viridian Group
- Vivian Mercier
- Vivion de Valera
- Vona Groarke
- Voyage of Snedgus and Mac Riagla
- Voyage of the Uí Chorra
- Vulture squad
- Vyvienne Long
- W. G. Fay's Irish National Dramatic Company
- W. J. Barre
- Wait Until The Weekend Comes
- Wakehurst F.C.
- Walking the Streets in the Rain
- Wallace Browne, Baron Browne of Belmont
- Wallace High School (Northern Ireland)
- Wallace Park
- Walsh Island
- Walsh Park
- Walt Willis
- Walter Blake
- Walter Booton
- Walter Ellis
- Walter Fawcett
- Walter Osborne
- Waltons Guitar Festival of Ireland
- Wanderly Wagon
- Warner Chilcott
- Warrant of Appointment
- Warren Parkes
- Warwickshire GAA
- Watch House Village
- Water Works, Belfast
- Waterford-Tipperary East (Dáil Éireann constituency)
- Waterford City (Parliament of Ireland constituency)
- Waterford City (UK Parliament constituency)
- Waterford College of Further Education
- Waterford Crystal
- Waterford Harbour
- Waterfront Hall
- Watergrasshill
- Waterside, Derry
- Waterville, County Kerry
- Waterways Ireland
- Wayne Byrne
- Wayne Colbert
- Wayne O'Sullivan
- Wayne Russell
- Wayne Sherlock
- We've Got The World
- Wedge-shaped gallery grave
- Wellington Rec F.C.
- Wellingtonbridge
- Wendimiller
- Wentworth Allen
- Wesley Ferris
- West-Link
- West Street Drogheda
- Western Canadian Championship 2004
- Western Canadian Championship 2005
- Western Canadian Championship 2006
- Western Canadian Championship 2007
- Western Division Board
- Western People
- Western Way
- Westmeath Intermediate Football Championship
- Weston Airport
- Westport House
- Wexford Harbour
- Wexford Martyrs
- Wexford Park
- When (Eurovision song)
- When You Need Me
- Whiddy Island
- Whipping Boy (Irish band)
- White Island, County Fermanagh
- Whiteabbey
- Whitechurch, County Dublin
- Whitecross, County Armagh
- Whitefield College of the Bible
- Whitegate, County Clare
- Whitehall, Dublin
- Whitehead, County Antrim
- Whiterock
- Whiterock, Belfast
- Whitewell Road
- Wibbly Wobbly Wonder
- Wicklow (Parliament of Ireland constituency)
- Wicklow Head
- Wide Streets Commission
- Wilbur Cush
- Wilfred Bourchier
- William Abraham (Irish politician)
- William Allen (UK politician)
- William Browne (MP)
- William Clarke & Son
- William Coffey (cricketer)
- William Connellan
- William Conolly
- William Crozier (cricketer)
- William Davin
- William Desmond
- William Fitzgerald (bishop)
- William Gerard Barry
- William Gleeson
- William Hamilton Maxwell
- William Harman
- William Hone Junior
- William Irwin (Northern Ireland politician)
- William John Leech
- William Johnston of Ballykilbeg
- William Lee (bishop)
- William Lundon
- William MacCarthy-Morrogh
- William McCrea (politician)
- William McKee
- William Meldon
- William Morgan Jellett
- William Murphy (footballer)
- William Murphy (Irish politician)
- William Norton
- William O'Donnell
- William O'Leary (Irish politician)
- William O'Shea
- William Ogilby
- William Patrick Ryan
- William Peskett
- William Porterfield
- William Ross (Northern Ireland politician)
- William Spotswood Green
- William Thompson (Northern Ireland politician)
- William Tirry
- William Walsh (Bishop)
- William X. O'Brien
- Williamstown, County Galway
- Willie Boland
- Willie Clancy
- Willie Clarke
- Willie Clifford
- Willie Corduff
- Willie Cunningham (Northern Irish footballer)
- Willie Doyle (footballer)
- Willie Duggan
- Willie Irvine
- Willie John Kiely
- Willie McFaul
- Willie Moore
- Willie Ross (football)
- Willie Walsh (hurler)
- Willoughby Hamilton
- Willow Park School
- Wind power in the Republic of Ireland
- Windgap
- Windmill Lane Studios
- Windsor Hill Primary School
- Windsor House
- Windsor, Belfast
- Windy Arbour
- Without Your Love (Gary O'Shaughnessy song)
- WLR FM
- Wolf the Quarrelsome
- Wolfe Tone Society
- Wood Quay
- Woodenbridge
- Woodford, County Galway
- Woodlawn, County Galway
- Woodmount
- Woodstock, Belfast
- Woodvale Ward, Belfast
- Wrap the Green Flag Around Me, Boys
- Wreck of the Hesperus
- WWT Castle Espie
- Yaakov Pearlman
- Yelverton case
- Yorkgate railway station
- Yorkshire GAA
- You Can Count On Me (song)
- Youghal (Parliament of Ireland constituency)
- Young Irelands
- Your Place and Mine
- YUMee
- Yvonne Connolly
- Yvonne McGuinness
- Zion Parish primary school