O
- (Twifo Hemang Lower Denkyira) Opayinfosukrom
- (Gomoa East) Opafukrom
- (Gomoa West) Onyadzi
- (Ajumako/Enyan/Essiam) Onyadzi
- (Agona East) Onumabo
- (Assin South) Onsunyamiye
- (Assin South) Ongwa
- (Agona West) Omen Bobikuma
- (Twifo Ati-Morkwa) Omandemro
- (Gomoa West) Okwawu
- (Ekumfi) Okwakwa
- (Asikuma/Odoben/Brakwa) Okurukrom
- (Twifo Ati-Morkwa) Okumayemfuohu
- (Twifo Ati-Morkwa) Okrakrom
- (Agona East) Okitsiu
- (Ekumfi) Okantade
- (Effutu) Ojinjinadzi
- (Agona East) Ojashewano
- (Abura/Asebu/Kwamankese) Ojanokrom
- (Ajumako/Enyan/Essiam) Ojamadzi
- (Gomoa West) Ohua
- (Asikuma/Odoben/Brakwa) Ohiumasi
- (Upper Denkyira East) Ohiankwanta
- (Asikuma/Odoben/Brakwa) Ohameda
- (Gomoa West) Ogwang
- (Gomoa East) Ogwakrom
- (Gomoa West) Ogua
- (Mfatseman) Ogokrom
- (Agona West) Ofuasi
- (Abura/Asebu/Kwamankese) Oframoasi