Keiji Suzuki (鈴木桂治, Suzuki Keiji, born June 3, 1980 in Jōsō, Ibaraki) is a Japanese judoka. He won the Olympic gold medal in the heavyweight (+100 kg) division in 2004. He is also a two-time world champion. He is noted for being a remarkably small judoka in the heavyweight division; he also regularly competed in the light-heavyweight (-100 kg) class. Suzuki is known as having some of the best ashi waza of all heavyweights. Suzuki was eliminated in the first round of the 2010 world Judo championship in Yoyogi, Japan, via ippon by Janusz Wojnarowicz of Poland.