O
- (Asa) Ogundele
- (Asa) Ogundeji
- (Asa) Ogunbo
- (Ifelodun) Ogunbayo
- (Edu) Ogudu
- (Asa) Ogodo
- (Moro) Ogiri
- (Ilorin West) Ogidi
- (Asa) Ogele
- (Asa) Ogbondoroko
- (Asa) Ogbin
- (Asa) Ofinada
- (Ifelodun) Ofarese
- (Ifelodun) Odutanje
- (Isin) Ode-Ore
- (Oke Ero) Odo Omi
- (Asa) Odo Ode
- (Moro) Odonigi
- (Oke Ero) Odofin-Odoaga
- (Oke Ero) Odofin Igbana
- (Oke Ero) Odofin Eyinafo
- (Oke Ero) Odofin Aiyekale
- (Isin) Odo-Eku
- (Ifelodun) Odamadi
- (Asa) Oboroko-Nla
- (Ekiti) Obo-Ile
- (Ekiti) Obo-Aiyegunle
- (Asa) Obate
- (Asa) Obate
- (Asa) Obansuwa