General Ibrahim Badamasi Babangida (Nigeria's military president 1985–1993) is not Yoruba. He is from the Gwari (Gbagyi) ethnic group in Niger State, North-Central Nigeria.
Nigeria's complexity: 250+ ethnic groups, North/South divide, military rulers from various backgrounds. Babangida's "IBB" moniker and national prominence sometimes blur regional specifics. His wife, Maryam (née King), was from the Niger Delta (Ogoni), adding to multi-regional identity.