- Callaghs
- Canningstown
- Cargagh
- Cargagh
- Cargaghoge
- Carn Cross Roads
- Carrickaboy
- Carrickallen
- Carricknashoke
- Carrigan
- Cartronnagilta
- Castlerahan
- Claragh
- Clements Town
- Clifferna
- Cloghoge
- Cloverhill
- Commons Gate
- Coollegreane
- Cootehill
- Coppanagh Mills
- Coppanaghmore
- Cordingin
- Corgreagh
- Corick Bridge
- Corlea
- Corleckagh
- Corlough
- Cornafean
- Cornagee