C
- (County Tipperary) Cloghanacody
- (County Tipperary) Clashaniska Mile Tree
- (County Waterford) Coolishal
- (County Tipperary) Cregg Bridge
- (County Tipperary) Crehanagh
- (County Waterford) Carrickavrantry
- (County Waterford) Cullenagh
- (County Waterford) Clohernagh
- (Limerick City and County Council) Cush Cross Roads
- (Limerick City and County Council) Curraghrothe
- (Limerick City and County Council) Cross of the Tree
- (Limerick City and County Council) Cloghansoun Bridge
- (Limerick City and County Council) Cahercorner
- (Limerick City and County Council) Clonbrick
- (Limerick City and County Council) Crossalaght
- (Limerick City and County Council) Clashbane
- (Limerick City and County Council) Coolnapisha
- (Limerick City and County Council) Cloonlusk
- (Limerick City and County Council) Cooga
- (Limerick City and County Council) Coolnahila
- (Limerick City and County Council) Cappanahanagh
- (Limerick City and County Council) Cappangue
- (Clare) Coollisteige
- (Clare) Carrowgar
- (Clare) Caher Island
- (County Tipperary) Clashdrumsmith
- (County Tipperary) Clonpet
- (County Tipperary) Castle Mary
- (County Tipperary) Clohernagh
- (County Tipperary) Carriganagh