O
- (Province of Negros Oriental) Olimbo
- (Bohol) Obuhan
- (Province of Negros Oriental) Olay
- (Province of Siquijor) Olave
- (Province of Cebu) Olango Island
- (Province of Cebu) Olango
- (Province of Siquijor) Olang
- (Province of Cebu) Oguis
- (Province of Negros Oriental) Odlumon
- (Province of Cebu) Odlot
- (Bohol) Odiong
- (Bohol) Odiong
- (Bohol) Odiong
- (Bohol) Obujan
- (Bohol) Obuhan
- (Bohol) Obuhan
- (Province of Cebu) Oboob
- (Province of Cebu) Obo
- (Bohol) Oban
- (Bohol) Oac
- (Bohol) Oac
- (Bohol) Old Town
- (Bohol) Old Town Sierra Bullones
- (Province of Negros Oriental) Omagongong
- (Bohol) Ondol
- (Province of Cebu) Olivo
- (Bohol) Overland
- (Bohol) Oy
- (Bohol) Owanan
- (Bohol) Owak