Masahiro Hasemi (Shinjitai: 長谷見 昌弘, Hasemi Masahiro, born 13 November 1945 in Tokyo) is a former racing driver and team owner from Japan. He started racing motocross when he was 15 years old. In 1964 he signed to drive for Nissan. After establishing himself in saloon car and GT races in Japan, he participated in his only Formula One race at the 1976 Japanese Grand Prix for Kojima on 24 October 1976. He qualified 10th after an error which cost him his chance of a pole position and finished 11th, seven laps behind the winner. Contrary to a widely propagated but mistaken result, however, he never set a fastest lap in a Formula One championship race. Along with compatriots Noritake Takahara and Kazuyoshi Hoshino, he was the first Japanese driver to start a Formula One Grand Prix.