- Soar
- Star
- Stryd-y-Facsen
- Six Bells
- Swffryd
- Sarnau
- Saron
- St George
- Saltney
- Shotton
- Sychdyn
- Sarn
- Sarn Bach
- Saron
- Seion
- Sling
- St Bride's Netherwent
- Sudbrook
- Sageston
- Saint Margaret’s Island
- Sardis
- Sheep Island
- Skokholm Island
- Skomer Island
- St Catherine's Island
- St. Dogmaels
- Summerhill
- Saint Davids
- Saint Lawrence
- Salem