Tags: Sumo Wrestler, Wrestler.
Kongō Masahiro (born 18 November 1948 as Masahiro Yoshizawa) is a former sumo wrestler from Hokkaidō Japan. His highest rank was sekiwake and he won a top division tournament championship in 1975. He was a sumo coach and head of the Nishonoseki stable from 1976 until 2013.