Oliver Mangeni Kizito (born 14 February 1988) is a Kenyan rugby union player, currently playing for the in the 2022 Currie Cup First Division. His preferred position is lock.
Kizito represented Simba XV in the 2014 Vodacom Cup. He was then named in the squad for the 2022 Currie Cup First Division.< Kizito is a Kenyan international in both 15-a-side and sevens.