Costigan (Irish: Mac Oistigin) is an Irish surname with higher concentrations in counties Laois, Tipperary and Kilkenny.[1] Costigan is a branch of the Fitzpatricks (Mac Giolla Phádraig dynasty) of Upper Ossory,[2] although the name may also independently derive from Hodgkin, a dimin. of Roger. Genetic evidence shows shared ancestry amongst Fitzpatricks and Costigans with ancestry in Upper Ossory[3][4][5] Notable people with the surname include:

Fictional characters:

See also

edit

References

edit
  1. ^ "Costigan | Irish Origenes: Use your DNA to rediscover your Irish origin".
  2. ^ ""The Mac Costigan of Ossory: dismantling an assumed genealogy"" (PDF).
  3. ^ "Irish genealogy records for the surname Costigan".
  4. ^ "Ireland's History - Old Irish Gaelic Surnames".
  5. ^ "FamilyTreeDNA - Fitzpatrick".