Hiroshi Nagashima

 (born March 15, 1966 in Kanagawa) is a retired boxer from Japan, who competed for his native country at the 1992 Summer Olympics in Barcelona, Spain.
Japan sent four boxers to the Barcelona Olympic Games. Nagashima competed in the Men's Light-Middleweight (– 71 kg) division. He was defeated in the first round by Maselino Masoe of American Samoa after the referee stopped the contest due to injury.