出羽海部屋
was a Japanese professional sumo wrestler from Mito, Ibaraki Prefecture. He was the sport's 19th "yokozuna" from 1903 till 1914. His great rivalry with Umegatani Tōtarō II created the "Ume-Hitachi Era" and did much to popularise sumo. He is remembered as much for his exploits in promoting the sport as for his strength on the "dohyō." In his later years as head coach of Dewanoumi stable he trained hundreds of wrestlers, including three "yokozuna". Many consider him the most honorable "yokozuna" in sumo history, which earned him the nickname , or "sumo saint".