Ogbonnaya Onu (born December 1, 1951) is a Nigerian politician and engineer. He is the Minister for Science and Technology under the President Muhammadu Buhari's administration. He was the first Executive Governor of Abia State under the National Republican Convention from January 1992 to November 1993. He was also the party leader for the All Nigerian People's Party before its coalition with other parties to form the All Progressives Congress.