Kohei Oguchi

 (born Saitama Prefecture, 6 October 1968) is a Japanese former rugby union player. He played as a prop.
Career.
After graduating from Daito Bunka University, where he played in the All-Japan University Rugby Championship, Oguchi joined the Ricoh club, where he played throughout all of his career. He was first capped for Japan on 7 June 1997, against United States, in San Francisco. Oguchi was also called up in the 1999 Rugby World Cup squad coached by Seiji Hirao, playing two matches in the tournament. His last cap for Japan was against South Korea, in Aomori, on 2 July 2000.