R
- (An Cabhán) Roo
- (County Donegal) Rossillybeg
- (An Cabhán) Ryefield
- (County Donegal) Rossnowlagh Upper
- (County Donegal) Rossnowlagh Lower
- (County Donegal) Rosnakill
- (County Donegal) Roshin
- (County Donegal) Rosborough
- (An Cabhán) Relaghbeg
- (An Cabhán) Redhills
- (County Donegal) Red Castle
- (County Donegal) Rawros
- (County Donegal) Rathlin O’Birne Island
- (County Donegal) Rashenny
- (County Donegal) Roosky
- (County Donegal) Rocking Stone
- (County Donegal) Ray
- (County Donegal) Race End
- (County Donegal) Rossmore
- (County Donegal) Rooney’s Island
- (County Donegal) Ray
- (County Donegal) Rosapenna
- (County Donegal) Rossblaney
- (County Donegal) Ray
- (County Donegal) Roosky
- (County Donegal) Roosky
- (County Donegal) Rathglass
- (County Donegal) Rockhill
- (County Monaghan) Rockcorry
- (County Donegal) Rann Na Feirste