- Siargao Islands
- Sibale Island
- Sibanac Island
- Sibukuan Island
- Silop
- Siwata
- Small Kababacan Island
- Small Tinago Island
- Sogas
- Solion
- Sugbu Diutay Islet
- Sugbu Islet
- Sugbuhan Island
- Suhoton
- Sumilon
- Sumilon Island
- Sur
- Suyoc
- Salvacion
- San Isidro
- San Jose
- San Juan
- San Miguel
- San Roque
- San Vicente
- Santa Cruz
- Santa Fe
- Santo Niño
- Sapa
- Sibahay