- Cappangue
- Carrigeen
- Carrigeen Cross Roads
- Carrow
- Castleconnell
- Castlequarter
- Castleroberts
- Castletown
- Castletroy
- Chesterfield
- Churchfield
- Churchtown
- Cill Fhíonáin
- Clarina
- Clash North
- Clash South
- Clashbane
- Clogghanduff Bridge
- Clogh
- Cloghane Bridge
- Cloghansoun Bridge
- Clogher
- Clogher Bridge
- Clonbrick
- Cloncagh
- Cloonlahard
- Cloonlahard Bridge
- Cloonlusk
- Cloonmore
- Cloonoughter