• Former Roman Catholic dioceses in Ireland‎ (10 P)
• Roman Catholic bishops in Ireland by diocese‎ (3 C)
• Roman Catholic dioceses in Northern Ireland‎ (6 C, 1 P)

A

• Roman Catholic Diocese of Achonry‎ (1 C, 4 P)
• Roman Catholic Diocese of Ardagh and Clonmacnoise‎ (1 C, 4 P)
• Roman Catholic Archdiocese of Armagh‎ (1 C, 2 P)

C

• Roman Catholic Archdiocese of Cashel and Emly‎ (2 C, 5 P)
• Roman Catholic Diocese of Clogher‎ (1 C, 3 P)
• Roman Catholic Diocese of Clonfert‎ (1 C, 3 P)
• Roman Catholic Diocese of Cloyne‎ (1 C, 2 P)
• Roman Catholic Diocese of Cork and Ross‎ (1 C, 9 P)

D

• Roman Catholic Diocese of Derry‎ (1 C, 3 P)
• Roman Catholic Archdiocese of Dublin‎ (4 C, 4 P)

E

• Roman Catholic Diocese of Elphin‎ (1 C, 3 P)

F

• Roman Catholic Diocese of Ferns‎ (1 C, 6 P)

G

• Roman Catholic Diocese of Galway, Kilmacduagh and Kilfenora‎ (2 C, 4 P)

K

• Roman Catholic Diocese of Kerry‎ (1 C, 4 P)
• Roman Catholic Diocese of Kildare and Leighlin‎ (1 C, 3 P)
• Roman Catholic Diocese of Killala‎ (1 C, 2 P)
• Roman Catholic Diocese of Killaloe‎ (2 C, 3 P)
• Roman Catholic Diocese of Kilmore‎ (1 C, 6 P)

L

• Roman Catholic Diocese of Limerick‎ (2 C, 3 P)

M

• Roman Catholic Diocese of Meath‎ (1 C, 5 P)

O

• Roman Catholic Diocese of Ossory‎ (1 C, 3 P)

R

• Roman Catholic Diocese of Raphoe‎ (1 C, 6 P)

T

• Roman Catholic Archdiocese of Tuam‎ (1 C, 4 P)

W

• Roman Catholic Diocese of Waterford and Lismore‎ (2 C, 5 P)

• List of Catholic dioceses in Ireland

A

• Roman Catholic Diocese of Ardagh and Clonmacnoise

C

• Roman Catholic Diocese of Clogher
• Roman Catholic Diocese of Clonfert

D

• Roman Catholic Diocese of Derry

F

• Roman Catholic Diocese of Ferns

K

• Roman Catholic Diocese of Kerry
• Roman Catholic Diocese of Kildare and Leighlin
• Roman Catholic Diocese of Killaloe
• Roman Catholic Diocese of Kilmore

R

• Roman Catholic Diocese of Raphoe