Dewaminato Rikichi (March 20, 1907, as Rikichi Satō in Tsuchizaki-Minato, Akita Prefecture, Japan – May 17, 1964), was a professional sumo wrestler with Dewanoumi stable. He made his debut in 1928, reaching the top makuuchi division in 1935. His highest rank was sekiwake. In January 1939 he won the top division yūshō or championship with an undefeated 13–0 record, ending a run of five straight championships won by Futabayama. After his retirement in 1944 he worked as a coach at his stable until 1963, when he left the sumo world. He died a year later in 1964.