Kenji Kimihara (君原 健二, Kimihara Kenji?, born 20 March 1941 in Kitakyūshū) is a former Japanese long-distance runner. He won the silver medal in the men's marathon at the 1968 Summer Olympics held in Mexico City, Mexico. Four years later he finished in fifth place in the same event. He won two gold medals in the marathon at the Asian Games in 1966 and 1970, and won the Boston Marathon in 1966.
He was very successful on the Japanese road racing circuit, winning the Tokyo International Marathon and Lake Biwa Marathon in both 1963 and 1964, and registering four wins at the Beppu-Ōita Marathon between 1967 and 1973.
Read more about Kenji Kimihara: Achievements