Hasegawa Katsutoshi (born 20 July 1944) is a former sumo wrestler from Kurisawa, Hokkaido, Japan (now a part of Iwamizawa city).
Unusually, he fought under his own surname for his entire career (he is the only top division wrestler from Sadogatake stable not to have adopted a shikona or fighting name with the prefix "Koto").
He won the top division yūshō or tournament championship at sekiwake rank in March 1972, defeating Kaiketsu in a playoff.
However, the Sumo Association decided not to promote him, as there were already four ōzeki at that time, who were generally felt to be performing at a mediocre level.
Sanshō key: F=Fighting spirit; O=Outstanding performance; T=Technique Also shown: ★=Kinboshi; P=Playoff(s) Divisions: Makuuchi — Jūryō — Makushita — Sandanme — Jonidan — Jonokuchi