Regions of Nigeria
- Isaobi
- Isanlu-Mopo
- Isanlu-Makutu
- Ipetu
- Isanlu-Itedoijowa
- Isanlu
- Isanlu-Isin
- Isanlu Esa
- Isangbe-Oye
- Isan-Ekiti
- Isana
- Isan
- Isan
- Isamuro
- Isampou
- Isalu
- Isalu
- Isalu
- Isale-Oja
- Isale Hill
- Isale-Apata
- Isala
- Isaku River
- Isakara
- Isaka Creek
- Isaka
- Isaka
- Isajin-Oyindola
- Isaihkiri
- Isagolu
- Isagira
- Isagi
- Isagbo-Ere
- Isagbo-Oke
- Isaga-Tedo
- Isaga Latunji
- Isaga-Abiodun
- Isaga
- Isaga
- River Isafa
- Isabiyi
- Isaba
- Isa Hill
- River Isa
- Isa
- Isa
- Isa
- Iruzum Hill
- Irunda
- Irun
- Iruga
- Iruekpen
- Iru
- Iru
- Irtwande
- Irri
- Irraboa
- Irowa
- River Irori
- Irore
- Iropora
- Iropo-Elefa
- Iropo
- Iro-Ogbadun
- River Ironin
- Irolu
- Irokun
- Iroko
- Irokhin
- Irogun-Akere
- Irogbo
- Iro
- River Irina
- Irina
- Iri Man Hill
- Iri Hill
- Iri Arna
- Iriama
- Iri
- Iri
- Irhuebos Camp
- Irhue
- Irewe
- Irete
- Ireso
- Iresi
- Irese
- Iresa-Pa
- Iresa-Adu
- Irepodun
- Irepodun
- Irepodun
- River Irelu
- Ode-Irele
- Iregun
- Iregbeta
- Iregba-Bamikole
- Iregba
- Ire-Ekiti
- Irede
- Ire
- Iraye
- Irawo-Owode
- Irawo-Ile
- Irapa
- Iranyin
- Iranla
- Irana
- Iraki
- Irahun
- Iragon
- Iragbo
- Iragbiji
- Iragberi
- Iraba
- Ira
- Ira
- Iquita
- Ique
- Iguelebu
- Ipoule
- Ipoti
- Ipota
- Iporo-Ekiti
- Iporo-Adesegun
- Iporo River
- Iporin
- Iporin
- Iporin
- Iponda
- Ipomu
- River Ipolo
- Ipole
- Ipole
- Ipokia
- Ipoke
- Ipogun
- River Ipo
- Ipirigbene
- Ipinsa
- Ipewu
- Ipetumodu
- Ipetu Forest Reserve
- Ipetu
- Ipetu
- Ipete
- Ipesu
- Ipesi
- Iperu
- Iperindo
- Ipere
- Ipepe
- Ipene
- Ipeme
- Ipele
- Ipekun
- Ipeba
- Ipee
- Ipaya
- Ipaya
- Ipawo
- Ipatira
- Ipata-Ogun
- Ipasa
- Ipari Oke
- Ipari Isale
- Ipare
- Ipara
- Ipapo
- Ipapo
- Ipanmi
- River Ipala
- Ipako-Obe
- Ipakodo
- Ipake
- Ipakan
- Ipaja
- Ipaja
- River Ipado
- Ipa
- Iorzua
- Iorzende
- Ioryaakwan
- Iorval
- Iortim
- Iortile
- Iortiel
- Iortrie
- Iorsue
- Iorshile
- Iorshe
- Iorshager
- Iorpuu
- Iorper
- Iornyor
- Iornyongu
- Iornyagh
- Iornum
- Iornjembel
- Iorneel