- Skehanagh
- Skehanagh
- Skenahincha
- Skerdmore
- Slaghty
- Slieveanulty
- Spa Islands
- Spiddal
- Springvale
- Srue
- Sruthán
- Stoneleigh
- Stonetown
- Stoneyisland
- Stradbally
- Straw Island
- Streamstown
- Seltanahunshin
- Shancarrick
- Shancurry
- Shanvaus
- Shass
- Sheskin
- Sliaganagh
- Slievenakilla
- Socks
- Sracummer
- Sradoon
- Sradrine
- Sramore