- Cappagowlan
- Cappahayden
- Cappalinnan
- Cappanageeragh
- Cappanagh
- Cappanargid
- Cappanarrow
- Cappanrush
- Cappanrush
- Cappoge
- Capppancur
- Cappyroe
- Capranny
- Carberrystown
- Carbury
- Carbury Sweep
- Carlanstown
- Carlingford
- Carn Bridge
- Carna
- Carnaross
- Carnbane
- Carnbeg
- Carnelrussel
- Carnew
- Carnybrogan
- Carragh
- Carragh Bridge
- Carran
- Carranstown Great