S
- (Province of Rizal) Subay
- (Province of Laguna) Suba
- (Province of Cavite) Soro-soro
- (Province of Batangas) Sorosoro
- (Province of Batangas) Sombrero Island
- (Province of Batangas) Soloc
- (Province of Quezon) Soledad
- (Province of Laguna) Soledad
- (Province of Quezon) Sokol
- (Province of Quezon) Sugod
- (Province of Quezon) Socorro
- (Province of Quezon) Sisirin
- (Province of Laguna) Sisilmin
- (Province of Laguna) Sirang Lupa
- (Province of Batangas) Siranglupa
- (Province of Batangas) Sipating
- (Province of Quezon) Sipa
- (Province of Batangas) Sinturisan
- (Province of Quezon) Sintanes
- (Province of Laguna) Sinipin
- (Province of Batangas) Sinipian
- (Province of Laguna) Siniloan
- (Province of Cavite) Sinaliw Munti
- (Province of Laguna) Sinalhan
- (Province of Batangas) Sili
- (Province of Quezon) Sili
- (Province of Quezon) Sildora
- (Province of Laguna) Silañgan Talaoñgan
- (Province of Quezon) Silangan Palale
- (Province of Laguna) Silangan Napapatid