The Diocese is divided into six deaneries, that is six regional groupings of parishes.  The six deaneries are:

Region I (Central) Conwal & Leck (Letterkenny), Aughaninshin (Letterkenny), Glenswilly, Ramelton.

Region II (Northern) Gartan & Termon, Kilmacrennan Carrigart, Tamney, Rathmullan, Dunfanaghy.

Region III (Eastern) Stranorlar, St Johnston, Newtowncunningham & Killea, Raphoe, Drumoghill, Glenfin.

Region IV (Southern) Ballyshannon, Ballintra, Donegal Town, Killymard, Inver.

Region V (Western) Dungloe, Burtonport, Gweedore, Falcarragh, Gortahork, Annagry.

Region VI (Southwestern) Glenties, Bruckless, Ardara, Killybegs, Kilcar, Carrick.

A Vicar Forane is assigned to each deanery.  The Vicars Forane are:

Very Rev Eamonn Kelly, Adm. Letterkenny.          074-9121021 (Region I)

Very Rev Martin Collum, PP, Rathmullan               074-9158156 (Region II)

Right Rev Mgr. Daniel Carr, PP, VG, St Johnston. 074-9148203 (Region III)

Very Rev Cathal O’Fearraí, PP, Ballyshannon.       071-9851295 (Region IV)

Very Rev Michael Herrity, PP. Annagry.                074-9548111 (Region V)

Very Rev Canon Austin Laverty, PP. Ardara.        074-9541135 (Region VI)