Regions of Nigeria
- Pa
- Ozuzu
- Ozuoba
- Ozu-Item
- Ozubulu
- Uzaku
- Ozu-Abam
- Ozu
- Ozu
- River Ozom
- Ozoguo
- Ozobo
- Ozizza
- Ozi
- Ozezebiri
- Ozante
- Ozarra
- Ozarra
- Ozara-Ukwu
- Ozara
- Ozara Station
- Ozanta
- Ozanisi
- Ozalla
- Ozalla
- Ozalana
- Ozala
- Ozahi
- Oza
- River Oyun
- Oyuko
- Oyubia
- Oyo State
- Oyoku Asang
- Oyoko
- Oyo-Ile Forest Reserve
- Oyo-Ile
- Oyo-Ile
- Oyohe
- Oyode
- Oyebu
- River Oyo
- Oyo
- Oyo
- Oyo
- Oyioba
- Oyinbogbene
- Onyina
- River Oyin
- River Oyile
- Oyigbobini
- Oyiba
- Oyi-Ajegunle
- River Oyi
- River Oyi
- River Oyi
- Oyewo
- Oyesorun
- Oyero
- Oyero
- Oyere-Kereja
- Oyeregbene
- Oyere-Fadehan
- Oyere-Asujo
- Oyere-Adedire
- River Oyere
- Oyengha
- Oyelade
- Oyekiri
- River Oyekanmeji
- Oyejobi
- Oye Hill
- Oyeh
- Oyegun
- Oyedeji
- Oyebode
- Oyebode
- Oyebisi
- River Oye
- Oye-Ekiti
- Oye
- Oye
- Oyateru
- Oyate
- Oyate
- Oyatawe
- Oyarinde
- Oyangbene
- River Oyan
- Oyan
- Oyagbe
- Oyadina
- Owuwukekere
- Owuwu
- River Owutu
- Owutu
- River Owuru
- River Owuru
- Owupokuobu
- Olepoku
- Owula
- Owukubo
- Owu-Ikija
- Owubu
- River Owu
- River Owu
- Owu-Isin
- Owu
- Owu
- Owu
- Owu
- Owoye
- Owowo Railway Station
- Owowo-Market
- Owowo
- Owotedo
- Oworonsoki
- Owo Ogono
- Owontola
- Owombe
- Ovum
- Owoleyeche
- Owolake
- Owolabi
- Owolabi
- Owoko
- Owojo
- Owojalaye
- Owoeyo
- Ovwodokpokpor
- Owodokpokpor
- Owode-Tomoloju
- Owode Adegbola
- Owode
- Owode
- Owode
- Owode
- Owode
- Owode
- Owode
- Owode
- Owode
- Owode
- Owode
- Owode
- Owode
- Owode
- Owode
- Owode
- Owobamibo
- Owobale
- River Owo
- River Owo
- Owo
- Owo
- Owo
- Owo
- Owo
- Owo
- River Owiwi
- Owini Hill
- Ovbieka
- River Owi
- Owhrode
- Owesse River
- Owerrinta
- Owerri-Nta
- Owerri Aba
- Owerri
- Owerri
- Oweribobo
- Owerewere
- Owere-Ezukala
- Owere
- River Owena
- River Owena
- Owena
- Owelu
- Owelle
- Owele
- Oweikorogba
- Awoji
- Owegbene
- Owe
- Owe-Ugbakele
- Owe
- Owaza
- Owaru
- Owa-Oyibu
- Owa Otun
- Owa-Ofie
- Owa-Nta
- River Owanrin
- River Owan
- Owan
- Onwakiko
- Owah-Abe
- Owa-Alizomor
- Owa-Aliosimi
- Owa-Alidima