Kawaguchi may refer to:

Places Kawaguchi, Niigata, a former town in Niigata Prefecture, Japan Kawaguchi, Saitama, a city in Saitama Prefecture, Japan Kawaguchi Green Center, a city park and botanical garden located in Kawaguchi, Saitama, Japan

Other uses Kawaguchi (surname) Kawaguchi Detachment, the 35th Infantry Brigade with 124th Infantry Regiment of the Imperial Japanese Army, led by Major General Kiyotaki Kawaguchi during World War II 7953 Kawaguchi, a main-belt asteroid discovered in 1993 Lake Kawaguchi, a body of water in Fujikawaguchiko, Yamanashi Prefecture, Japan NHK Kawaguchi Transmitter, a medium-wave broadcasting station at Kawaguchi, Saitama, Japan from 1937 to 1982 Kawaguchi Route (Shuto Expressway) Kawaguchi Station, a railway station on the Keihin-Tōhoku Line in Kawaguchi, Saitama Prefecture, Japan Nishi-Kawaguchi Station, a railway station on the Keihin-Tōhoku Line in Kawaguchi, Saitama Prefecture, Japan Kawaguchi, Brave New World, Ekai Kawaguchi (1866–1945), Japanese Buddhist monk; his name was used as one of the early proponents of Ectogenesis in Aldous Huxley's dystopian Brave New World.