C
- (Sligo) Corwillick
- (Sligo) Clogher Beg
- (Sligo) Carrickoneilleen
- (Sligo) Crossboy
- (Sligo) Clooneally
- (Sligo) Correagh
- (Sligo) Cartronhugh
- (Sligo) Cartrontaylor
- (Sligo) Carrowerin
- (Sligo) Carrownspurraun
- (Sligo) Cloonymeenaghan
- (Sligo) Cloongad
- (Sligo) Cleavry
- (Sligo) Cloghoge
- (Sligo) Carrowkeel
- (Sligo) Cuilsheeghary
- (Sligo) Carrowcashel
- (Sligo) Carrickcoola
- (Sligo) Clooskirt
- (Sligo) Cloonagh
- (County Leitrim) Curraghan
- (County Leitrim) Conray
- (County Leitrim) Carrigeencor
- (County Leitrim) Cornalaghta
- (County Leitrim) Corrycullen
- (County Leitrim) Corrudda
- (County Leitrim) Clooneen
- (County Leitrim) Cornstauk
- (County Leitrim) Carrickleitrim
- (County Leitrim) Cloonlogher