C
- (Cotabato) Calawag
- (Province of Sultan Kudarat) Catampocan
- (Province of Sultan Kudarat) Cadiz
- (Province of Sultan Kudarat) Carandang
- (Province of Sultan Kudarat) Capincong
- (Cotabato) Cadi-Is
- (Province of Sarangani) Canalo
- (Province of Sarangani) Cambias
- (Cotabato) Camansi
- (Province of Sarangani) Calmaba
- (Cotabato) Catilakan
- (Cotabato) Calaluan
- (Province of South Cotabato) Calabalol
- (Cotabato) Cabundoc
- (Province of Sultan Kudarat) Cabulacan
- (Province of Sarangani) Caspot
- (Province of South Cotabato) Caiñaman
- (Province of Sarangani) Camasi
- (Cotabato) Capayaron
- (Province of South Cotabato) Concepcion
- (Province of South Cotabato) Calumpang
- (Province of Sarangani) Cablacan
- (Cotabato) Culaman
- (Province of South Cotabato) Crossing
- (Province of South Cotabato) Crossing Palkan
- (Province of Sultan Kudarat) Crismor
- (Province of South Cotabato) Creek
- (Province of Sarangani) Copato
- (Province of Sarangani) Copalcada
- (Province of Sultan Kudarat) Colong-Colong