The Catholic Dioceses of Ireland: Achonry: Sections of Sligo,Mayo, Roscommon. Ardagh and Clonmacnoise: Almost all of Longford and Leitrim. Parts of Cavan, Offaly, Roscommon, Sligo and Westmeath Armagh: Louth, most of Armagh. Parts of Tyrone, Derry and Meath Cashel and Emly: Almost all of Tipperary and parts of Limerick Clogher: Monaghan, almost all of Fermanagh. Parts of Tyrone, Donegal, Louth and Cavan Clonfert: Some of Galway, Offaly and Roscommon Cloyne: Most of County Cork Cork and Ross: Cork City and parts of County Cork Derry: Almost all of Derry. Parts of Donegal, Tyrone and Antrim Down and Connor: Almost all of Antrim and Down and part of Derry Dromore: Some of Antrim, Armagh and Down Dublin: City of Dublin, most of County Dublin, Wicklow. Parts of Carlow, Kildare, Laois and Wexford Elphin: Some of Roscommon, Sligo, Westmeath and Galway Ferns: Almost all of Wexford and parts of Wicklow Galway, Kilmacduagh and Kilfenora: Parts of Mayo, Galway and Clare Kerry: Almost all of Kerry and parts of Cork Kildare and Leighlin: Carlow. Parts of Kidare, Laois, Offaly, Kilkenny, Wickow and Wexford Killala: Some of Mayo and Sligo Killaloe: Some of Clare, Laois, Limerick, Offaly and Tipperary Kilmore: Almost all of Cavan. Parts of Leitrim, Fermanagh, Meath and Sligo Limerick: Most of Limerick. Parts of Clare and Kerry Meath: Almost all of Meath, Westmeath and Offaly. Parts of Longford, Louth, Dublin and Cavan Ossory: Almost all of Kilkenny. Parts of Offaly and Laois Raphoe: Most of Donegal Tuam: Some of Mayo, Galway and Roscommon Waterford and Lismore: Waterford. Sections of Tipperary and Cork (As found on the Internet)