O
- (Ovia North-East) Obagia
- (Uhunmwonde) Obadan
- (Esan South-East) Onogholo
- (Etsako Central) Okpemi
- (Owan East) Otwa Sebe
- (Etsako Central) Otuga
- (Owan East) Ohame
- (Etsako East) Okpoto
- (Akoko-Edo) Oskju
- (Owan West) Ovbiokhuan
- (Ovia North-East) Ogbiyeye
- (Ovia South-West) Obozogbe
- (Ikpoba-Okha) Obe
- (Ovia North-East) Obagie
- (Ovia North-East) Ozomu
- (Orhionmwon) Okuogbe
- (Orhionmwon) Ogbigun
- (Owan East) Ogute-Okpa
- (Etsako West) Odame
- (Uhunmwonde) Oriakhi Camp
- (Esan South-East) Ologua
- (Iguegben) Oniha
- (Orhionmwon) Otta
- (Orhionmwon) Ovbiebo Camp
- (Iguegben) Obumese Camp
- (Iguegben) Obodeko
- (Iguegben) Okuta
- (Iguegben) Ogoh
- (Orhionmwon) Oghanda Water-Side
- (Orhionmwon) Obajie-Oheze