- Collmanagh Upper
- Coolalaw
- Coole
- Coolnamara Cross Roads
- Coolroe
- Coonogue
- Corries Cross Roads
- Cramlusky
- Cranaronane
- Cranemore
- Crannagh
- Croneskagh Lower
- Croneskagh Upper
- Croneskugh
- Cuckoo Corner
- Cunaberry
- Curragh
- Cabra
- Chapelizod
- Clanbrassil Street
- Clonliffe
- Clontarf
- Crumlin
- Cabinteely
- Carrickmines
- Cherrywood
- Cappoge
- Castleknock
- Chapelmidway
- Cloughran