S
- (Sligo) Sroove
- (Sligo) Streamstown
- (Sligo) Sandyhill
- (Sligo) Sessuecommon
- (Sligo) Straduff
- (Sligo) Srananagh
- (County Leitrim) Shancurry
- (County Leitrim) Seltanahunshin
- (County Leitrim) Stuck Cross Roads
- (County Leitrim) Sunnaghconnor Mill
- (County Leitrim) Sranadarragh
- (County Leitrim) Shanvaus
- (County Leitrim) Shass
- (County Leitrim) Sravrannies
- (County Leitrim) Sradrine
- (County Galway) Shanaglish
- (County Galway) Sheeaun
- (County Galway) Skehanagh
- (County Galway) Shanvally
- (County Galway) Saliahoona
- (County Galway) Shannagurraun
- (County Galway) Shanballyoghery
- (County Galway) Srue
- (County Galway) Saint Brendan’s Island
- (County Galway) Shanbally
- (County Galway) Shanelogh
- (County Galway) Stoneleigh
- (County Galway) Shancroagh
- (County Galway) Shannafreaghoge
- (County Galway) Shankill