R
- (Sligo) Rathtermon
- (Roscommon) Rathkeery
- (Roscommon) Runnameelta
- (Roscommon) Runnabehy
- (Roscommon) Raheely
- (Roscommon) Roosky
- (Sligo) Rathglass
- (Sligo) Ross
- (Sligo) Rue
- (Sligo) Rinbaun
- (Sligo) Rathmactiernan
- (Sligo) Riskeen Lough
- (Sligo) Rockfinlough
- (Sligo) Rathmore
- (Sligo) Ranaghan
- (Sligo) Rathnarrow
- (Sligo) Rinnarogue
- (Sligo) Rathdoony Beg
- (Sligo) Roscrib
- (Sligo) Roosky
- (Sligo) Rathcarrick
- (Sligo) Rinn
- (Sligo) Rathquarter
- (Sligo) Rathbraghan
- (Sligo) Rathonoragh
- (Sligo) Rinn
- (Sligo) Rathgran
- (Sligo) Rathmullen
- (Sligo) Rathedmond
- (Sligo) Rathgeean