O
- (Asikuma/Odoben/Brakwa) Ochwidua
- (Gomoa East) Ochreku
- (Agona East) Ochokrom
- (Asikuma/Odoben/Brakwa) Ochisua
- (Ajumako/Enyan/Essiam) Ochiso
- (Assin South) Ochiso
- (Abura/Asebu/Kwamankese) Ochireku
- (Asikuma/Odoben/Brakwa) Obuyensum
- (Assin South) Obuoso
- (Ajumako/Enyan/Essiam) Obum
- (Mfatseman) Obukrom
- (Assin North) Obuahun
- (Asikuma/Odoben/Brakwa) Obronikrom
- (Agona East) Oboyambo
- (Agona East) Oboyabo
- (Agona East) Oboyabo
- (Asikuma/Odoben/Brakwa) Obosumasi
- (Abura/Asebu/Kwamankese) Obokofikrom
- (Abura/Asebu/Kwamankese) Obokaw
- (Agona East) Oboefi
- (Abura/Asebu/Kwamankese) Obobin
- (Abura/Asebu/Kwamankese) Oboadzi
- (Gomoa West) Obiri
- (Twifo Hemang Lower Denkyira) Obinkrom
- (Asikuma/Odoben/Brakwa) Obasi
- (Upper Denkyira East) Oseikurom