Donaldson Oladipo Diya (born 3 April 1944) is a retired Lt.
General in the Nigerian Army.
He was appointed Military Governor of Ogun State from January 1984 to August 1985.
As Chief of the General Staff, he was the de facto Vice President of Nigeria during the Sani Abacha military junta from 1994 until he was arrested for treason in 1997.
His Principal Staff Officer during this period was Bode George, who joined the People's Democratic Party after democracy was restored in 1999.