July 1
editAaron; Commemoration of the 72 Apostles; Saints Cosmas and Damian; Feast of the Most Precious Blood; Pamphilus of Caesarea; Henry Venn; John Venn (1750-1813); Henry Venn (1796-1873);
July 2
editAberoh and Atom; Aburom; Acestus; Adegrin; Adeodatus; Arianus; Visitation (Christian);
July 3
editAaron of Aleth; Achatius; Commemoration of 12 Disciples (Nusardii) & Mar Thomas the Apostle; Pope Leo II; Thomas the Apostle;
July 4
editAggaeus; Andrew of Crete; Haggai; Oda the Severe; Ulrich of Augsburg;
July 5
editAgatho and Triphina; Agnes; Anthony Maria Zaccaria; Athanasius the Athonite; Clodia;
July 6
editAbahor; Abrahamite monks; John Fisher; Thomas More;
July 7
editAchatius the Sinaite; Adalberga; Auberge; Pope Benedict XI; Saint Cyril; Saints Cyril and Methodius; Edelburga; Saint Methodius; Palladius; Pantaenus; Prosper of Aquitaine; Thomas Becket; Willibald;
July 8
editAbda and Sabas; Adrian III; Pope Adrian VI; Adrian Fortescue; Aedh of Tirdaglas; Agatho; Agrestius; Agrippina; Mara Jacob of Nisibis; Pope Eugenius III; Saint Kilian;
July 9
editAdrianus Beeanus; Aggaeus; Aggai of Edessa; Agilulf of Cologne; Haggai; John Fisher; Thomas More;
July 10
editAedh of Clonmany; Alexander and his six brothers; Our Lady of Fatima; Archbishop Mar Yousip Khnanisho;
July 11
editAbundius of Córdoba; Achilleus; Benedict of Nursia; Olga of Kev; Pope Pius I;
July 12
editJohn Gaulbert; Saint Veronica;
July 13
editAbda; Abel of Tacla Haimonot; Bishop Henry; Henry II, Holy Roman Emperor; Jacobus de Voragine; Silas; Mildred
July 14
editAdeodatus; Bonaventure; Desusdedit of Canterbury; John Keble;
July 15
editAbhai (saint); Abhai the Bishop; Abudimus; Aetherius of Evreux; Agrippinus, Secundus, Maximus, Fortunatus and Martialis; Bonaventure; Henry II, Holy Roman Emperor; Jacob of Nisibis; Mar Mari the Apostle & Mar Cyriacus and his mother; Our Lady of Mount Carmel; Swithun;
July 16
editEustathius of Antioch; Marie-Madeleine Postel; Saint Osmund;
July 17
editAcyllinus; Pope Leo IV; Magnus Felix Ennodius;
July 18
editAemilianus the Victorious; Arnulf of Metz; Camillus de Lellis; Elizabeth Ferard;
July 19
editAdelmann; Aedhan of Lismore; Arsenius the Great; Gregory of Nyssa; Kirdjun; Pope Symmachus; Vincent de Paul;
July 20
editAbraham Galitzki; Achatius; Saint Aurelius; Bartolomé de Las Casas; Elijah; Margaret of Antioch;
July 21
editAdrianites; Adrianus, Helius, Victor, Patroclus, Caesarianus, Adrianitis, Diemsius, Felix, Aurelius, Thymabrates, Theodotus & Julianus; Agape; Agrianites, Typocrates and companions;
July 22
editAbd-al-Masih (martyr); Abda; Aser; Mary Magdalene;
July 23
editApollinare; Bridget of Sweden; John Cassian; Lawrence of Brindisi;
July 24
editOlga
July 25
editAdelviva; Saint Anne; Saint Christopher; James, son of Zebedee; Joachim;
July 26
editAdjutor; Ajudon; Saint Anne; Bartolomeo Capitaino; Joachim; Simeon Stylites;
July 27
editAetherius of Auxerre; Brooke Foss Westcott; Pope Celestine I; Saint Pantaleon;
July 28
editAchatius; Pope Victor I;
July 29
editAbraham the Great of Kidunja; Adam; Lazarus; Martha; Mary, sister of Lazarus; Olaf II of Norway; William Wilberforce;
July 30
editAbdon and Sennen; Adelelmus of Burgos; Adelgundis; Adelphius & Cajus; Adrianus & Serenus; Aedh McBricc; Bar-Hebraeus; Peter Chrysologus; Silas; William Wilberforce;
July 31
editGiovanni Columbini; Ignatius of Loyola; Joseph of Arimathea; Leontine martyrs; Obadiah;