- Rathglass
- Rathgranagher
- Rathkip
- Rathlackan
- Rathmore
- Rathmorgan
- Rathnamagh
- Rathoma
- Rathredmond
- Rathroeen
- Rathrowan
- Rathscanlan
- Rathslevin
- Reask
- Resmurrevagh
- Rinakilleen
- Rinbrack
- Rinmore
- Rinn
- Rinn na Sionnach
- Rinnahulty
- Rinnananny
- Rinnaseer
- Rinneanach
- Rinshinna
- Rockfield
- Rockfield
- Rockfield
- Rockfleet
- Rocky Island