Moshood Kashimawo Olawale Abiola (often referred to as M. K. O. Abiola) (born August 24, 1937?) in Abeokuta, was a Nigerian Yorùbá businessman and political figure. He served as the president-elect of Nigeria in 1993 before the election was annulled by Ibrahim Babangida. Abiola died in captivity of a heart attack on July 7, 1998.