Hiroshi Ogawa (小川 博, Ogawa Hiroshi, born April 2, 1962 in Ashikaga, Tochigi) is a former Japanese pitcher of the Chiba Lotte Marines and convicted murderer. He is the only baseball player who is serving life in prison for murder without parole. He has 21 children.
On November 18, 2004, Ogawa murdered a 67-year-old woman named Kazuko Nishiuchi. His uniform number, 26, has been retired since 2005. On September 29, 2005, he was sentenced to life imprisonment at the Saitama District Court.