March
5 Kieran of Seirkeiran. Ossory diocese. circa 545
24 Macartan, bishop. Clogher diocese. circa 505
April
18 Laserian, abbot. Leighlin diocese. 639
27 Assicus (or Tassach) bishop. Elphin diocese. 470.
May
10 Comgall of Bangor, abbot. Down diocese. 602
14 Carthagh. Lismore diocese. 637
16 Brendan, "the Navigator". Ardfert and Clonfert dioceses. 577
June
3 Kevin. Glendalough diocese. 618.
6 Jarlath, Tuam diocese. circa 550
7 Colman, Dromore Diocese. 6th century
27 Richard Fitzralph. Archbishop of Armagh, reformer. 1360
July
6 Moninne of Killeavy, Armagh diocese. 518
8 Kilian, bishop and martyr. Kilmore diocese. 689
24 Declan, bishop. Lismore diocese. 5th century.
August
9 Felim. Kilmore diocese. circa 560
9 Crumnathy or Nathi. c.610 Achonry Diocese
12 Muredach, or Murtagh. c. 480 Kilalla Diocese
13 Jeremy Taylor, Bishop of Down and Connor and Dromore. Writer. 1667
14 Fachtna (or Fachanan) bishop. Ross diocese. 6th century.
16 Charles Inglis, bishop. 18th century.
September
3 Oengus Mac Nisse of Dalriada. Connor diocese. 514
9 Ciaran of Clonmacnois. circa 545
10 Finnian of Moville in the Ards. Down diocese. 579.
23 Eunan, Abbot. Raphoe diocese. 7th century
25 Fin Barre. Cork diocese. 623
October
11 Canice, bishop. Ossory diocese. 6th century
12 Móibhí, Teacher. 545.
16 Gall, missionary Down diocese. 630
27 Otteran, abbot. Waterford diocese. 563
November
3 Malachy, bishop. Armagh and Down dioceses. 1148
14 Laurence O'Toole. Dublin and Glendalough dioceses. 1180
23 Columbanus, abbot. Down diocese. 615
24 Colman. Cloyne diocese. 601.
December
18 Flannan. Killaloe diocese. 640.