Mitsuneyama Keiji, real name Tōichi Shimamura (7 February 1922 – 15 August 1989) was a sumo wrestler from Arakawa, Tokyo, Japan who won the top division yūshō or tournament championship in 1954. His highest rank was ōzeki and he earned nine kinboshi or gold stars for defeating yokozuna when ranked as a maegashira, and seven special prizes. After his retirement in 1960 he was the head coach of Takashima stable.