The People of Ogun State belong to the Yoruba Ethnic Group of South-West Nigeria and also live in parts of Benin Republic and Togo, with substantial Diaspora elements in Brazil, Cuba and Sierra Leone, consequential to the Trans-Atlantic Slave Trade.

The Sub-groups are mainly the Egba, Yewa, Awori, Egun, Ijebu, Remo, Ikale and Ilaje, Anago, Ketu, Ohori etc.