S
- (Occidental Mindoro) Sinaogo
- (Occidental Mindoro) Sinambalan
- (Province of Marinduque) Sinambahan
- (Province of Palawan) Sina Island
- (Province of Palawan) Sinagup
- (Province of Palawan) Sinadoyang
- (Occidental Mindoro) Simerigan
- (Province of Romblon) Simara Island
- (Province of Palawan) Simagup
- (Province of Palawan) Silumisan Island
- (Province of Romblon) Silum
- (Occidental Mindoro) Silong
- (Province of Palawan) Silomsilom
- (Oriental Mindoro) Sibalat Island
- (Province of Palawan) Silat Island
- (Province of Palawan) Silanga Islands
- (Province of Palawan) Silanga
- (Province of Palawan) Silad Island
- (Occidental Mindoro) Silad
- (Province of Palawan) Sikob
- (Province of Palawan) Sikat
- (Province of Marinduque) Sihi
- (Oriental Mindoro) Sigayan
- (Occidental Mindoro) Sigaras
- (Province of Marinduque) Sibuyao
- (Province of Romblon) Sibuyan Island
- (Province of Romblon) Sibuyan Group
- (Province of Marinduque) Sibucao
- (Province of Romblon) Sibay
- (Province of Palawan) Sibaltan