Tsuyoshi Nakaima (なかいま 強, Nakaima Tsuyoshi) is a Japanese manga artist who is the author and artist of sports manga. He is best known for the Sumo series Ucchare Goshogawara, for which he received the 1989 Shogakukan Manga Award in shōnen category. and which got an OVA adaptation in 1991.Nakaima was an avid baseball player throughout high school and college but had to quit after shoulder injury. He became an assistant to Akio Chiba before creating manga on his own. Nakaima is from Okinawa and it has been noted how some of his character use Okinawan Japanese.