S
- (County Carlow) Stralusky
- (Wicklow) Slievereagh Upper
- (Wicklow) Slievereagh Lower
- (Wicklow) Slievenamough
- (Wicklow) Slieveboy Lower
- (Wicklow) Slieveboy Upper
- (Wicklow) Slievenamough Plain
- (Wicklow) Slieveroe
- (Wicklow) Sroughmore
- (Wicklow) Springfarm
- (Wicklow) Sheena More
- (Wicklow) Sallymount
- (Wicklow) Scratenagh
- (Wicklow) Seabank
- (Wicklow) Springfield
- (Wexford) Scarnagh Upper
- (Wicklow) Slieveduff
- (Wicklow) Slievenavode
- (Wexford) Shirsheen
- (Wicklow) Shelton
- (Wicklow) Snugborough
- (Wicklow) Sheepwalk
- (Wexford) Slievebaun
- (Wexford) Stafford Bog
- (Wicklow) Stoops
- (Wicklow) Shuttles Wood
- (Wicklow) Seskin
- (Wicklow) Stranakelly
- (Kildare) Silverhill
- (Kildare) Slieveroe