Koji Yamamuro (山室 光史, Yamamuro Kōji, born January 17, 1989 in Koga, Ibaraki) is a Japanese gymnast.[2] He has won two Olympic medals in the men's artistic team all-around – silver in 2012 (London) and gold in 2016 (Rio de Janeiro).
Yamamuro competed for the national team at the 2012 Summer Olympics in the men's artistic team all-around. In the team final, he injured his ankle on the vault event and had to be helped off.[3] Although he had qualified for the individual all-around final, he had to withdraw because of his injury and was replaced by his teammate Kazuhito Tanaka,[4] who had ranked behind Yamamuro and Kōhei Uchimura and had not qualified due to the 2-per-country rule.
Yamamuro also participated in the 2012 American Cup.[5]
At the 2016 Summer Olympics in Rio de Janeiro, Yamamuro won a gold medal as part of the Japanese men's team. In the event finals, Yamamuro competed on pommel horse and still rings with scores of 13.900 and 14.866 respectively.