Lemma Megersa (Oromo: Lammaa Magarsaa; born 26 July 1970) is an Ethiopian politician currently serves as the Minister of Defense of Ethiopia, and was the President of the Oromia regional state of Ethiopia and Deputy Chairman of the ruling party in the region, Oromo Democratic Party. He was appointed as minister on 18 April 2019. Since the formation of the new Prosperity Party, Megersa has been independent.