July 1 edit
Aaron; 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 edit
Aberoh and Atom; Aburom; Acestus; Adegrin; Adeodatus; Arianus; Visitation (Christian);
July 3 edit
Aaron of Aleth; Achatius; Commemoration of 12 Disciples (Nusardii) & Mar Thomas the Apostle; Pope Leo II; Thomas the Apostle;
July 4 edit
Aggaeus; Andrew of Crete; Haggai; Oda the Severe; Ulrich of Augsburg;
July 5 edit
Agatho and Triphina; Agnes; Anthony Maria Zaccaria; Athanasius the Athonite; Clodia;
July 6 edit
Abahor; Abrahamite monks; John Fisher; Thomas More;
July 7 edit
Achatius 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 edit
Abda 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 edit
Adrianus Beeanus; Aggaeus; Aggai of Edessa; Agilulf of Cologne; Haggai; John Fisher; Thomas More;
July 10 edit
Aedh of Clonmany; Alexander and his six brothers; Our Lady of Fatima; Archbishop Mar Yousip Khnanisho;
July 11 edit
Abundius of Córdoba; Achilleus; Benedict of Nursia; Olga of Kev; Pope Pius I;
July 12 edit
John Gaulbert; Saint Veronica;
July 13 edit
Abda; Abel of Tacla Haimonot; Bishop Henry; Henry II, Holy Roman Emperor; Jacobus de Voragine; Silas; Mildred
July 14 edit
Adeodatus; Bonaventure; Desusdedit of Canterbury; John Keble;
July 15 edit
Abhai (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 edit
Eustathius of Antioch; Marie-Madeleine Postel; Saint Osmund;
July 17 edit
Acyllinus; Pope Leo IV; Magnus Felix Ennodius;
July 18 edit
Aemilianus the Victorious; Arnulf of Metz; Camillus de Lellis; Elizabeth Ferard;
July 19 edit
Adelmann; Aedhan of Lismore; Arsenius the Great; Gregory of Nyssa; Kirdjun; Pope Symmachus; Vincent de Paul;
July 20 edit
Abraham Galitzki; Achatius; Saint Aurelius; Bartolomé de Las Casas; Elijah; Margaret of Antioch;
July 21 edit
Adrianites; Adrianus, Helius, Victor, Patroclus, Caesarianus, Adrianitis, Diemsius, Felix, Aurelius, Thymabrates, Theodotus & Julianus; Agape; Agrianites, Typocrates and companions;
July 22 edit
Abd-al-Masih (martyr); Abda; Aser; Mary Magdalene;
July 23 edit
Apollinare; Bridget of Sweden; John Cassian; Lawrence of Brindisi;
July 24 edit
Olga
July 25 edit
Adelviva; Saint Anne; Saint Christopher; James, son of Zebedee; Joachim;
July 26 edit
Adjutor; Ajudon; Saint Anne; Bartolomeo Capitaino; Joachim; Simeon Stylites;
July 27 edit
Aetherius of Auxerre; Brooke Foss Westcott; Pope Celestine I; Saint Pantaleon;
July 28 edit
Achatius; Pope Victor I;
July 29 edit
Abraham the Great of Kidunja; Adam; Lazarus; Martha; Mary, sister of Lazarus; Olaf II of Norway; William Wilberforce;
July 30 edit
Abdon and Sennen; Adelelmus of Burgos; Adelgundis; Adelphius & Cajus; Adrianus & Serenus; Aedh McBricc; Bar-Hebraeus; Peter Chrysologus; Silas; William Wilberforce;
July 31 edit
Giovanni Columbini; Ignatius of Loyola; Joseph of Arimathea; Leontine martyrs; Obadiah;