Regions of Nigeria
- Ogberuwen
- Ochogbe
- River Ogbere
- Ogbere
- Ogbere
- Ogbere
- Ogbe-Orogho
- Ogbema Koku
- Ogboma
- Ogbelulu
- Ogele
- Ogbeinbene
- Ogbe-Ijoh
- Ogbegunmo
- Ogbegbe
- Ogbe Eruku
- Ogbedi
- Ogbede
- Ogbede
- Obe-Adun
- Ogbe River
- Ogbe
- Ogbe
- Ogbe
- Ogbe
- Ogbaulu
- Ogba-Ofu Quarters
- Ogbaniko
- Ugbala
- Ogbaku-Ndiagu
- Ogbekuma
- Ogbaku
- Ogbakiri
- Ogbokiri
- Ogbaja
- Ogbahu
- Ogbagwu
- Ogbagu Ogume
- Ogbagun
- Ogbagi
- River Ogbagba
- Ogbagba
- Ogbagba
- Ogbaga
- Ogbaga
- River Ogbadibo
- Ogbabu
- River Ogba
- Ogba
- Ogba
- Ogba
- Ogba
- Oghara
- Ogangi
- Ogangang
- Oganga
- Ogan
- Ogaminana
- Ogambang
- Ogam
- Ogam
- Ogale
- Ogala
- Ogaine
- Ogaga
- Ogadje
- Oghada
- Ogada
- Ofurekpe
- Ofunmengbe
- Ofunatam
- Ofunama Creek
- Ofunama
- Ofumbal Hill
- Ofugbo
- River Ofu
- River Ofosu
- Ofosu
- Ovwori
- Oforachi
- Ofoniama
- Ofoni
- Ofoni
- Ofonbonga
- Ofoko-Koto
- Ofoko-Gwari
- Ofokofi
- Ovoko
- Ofuogbene
- Ofodua
- Ofobiem Stream
- Ofo-Ape
- River Ofo
- River Ofisa
- Ofinada
- Ofin
- Ofiki-Ope
- River Ofiki
- Ofiki
- Ofigbo Hill
- Ofiaokuma
- Ofianko
- Ofia Ekpone
- Ofi
- Offot
- Offorsuokiri
- Offorboko
- Offi Uda
- Offa-Igbo
- Offa
- Offa
- Oforekpe
- Oferekpe
- Ofere
- Ofeku
- Ofe-Iyiokwu
- River Ofe
- Ofe
- Ofe
- Ofaye
- Ofatura
- Ofatedo
- Ofat
- Ofarese
- River Ofara
- Ofanwa
- Ofante
- Ofanran
- Ofambe
- River Ofala
- Ofagbe
- Ofafu
- Ofada
- Ofa
- Ofa
- Oduting
- Odutanje
- Oduro
- Oduonim Ison Inyiang
- Oduoha
- Oduoha
- Ogunremi
- Odunko
- Odun Forest Reserve
- Odunewu
- Odunbaku
- Odunaro
- Oduna
- Odumekpang
- Oduma Hill
- Oduliey
- Odukpani
- Odugiri
- Odugbo
- Odugbo
- Odugbeho
- Odufor
- Oduenyi
- Odudugberedu
- Odudaje
- Odubade
- Oduoha
- Odau
- Odu
- Odu
- Odu
- Odozienu
- Odoye
- Odoyanta
- Odowara
- Odot Uyi
- Odoto
- Odot Creek
- Odot
- Odo Siwaren
- Odosin
- Odosimadegun
- Odo-Senlu
- Odorubo
- Odoro Ikpe
- Odoro Ikot
- Odoro Enen
- Odoro Atasong
- Odo Ragun
- Odo Pete
- Odo-Oya
- Odo-Owo Ile
- Odo-Owe
- Odo-Owa
- Odo Oshun
- Odo Oro
- Ode-Ore
- Odo-Onanla
- Odo-Ona
- Odo-Ona
- Odo-Ona
- Odo Omi
- Odo-Ogun Forest Reserve
- Odo-Ogun
- Odo-Ogun