Taniguchi (written: 谷口) is a Japanese surname. Notable people with the surname include:
Gorō Taniguchi, Japanese anime director
Hiromi Taniguchi, Japanese long-distance runner
Hiroyuki Taniguchi, Japanese football player
Itaru Taniguchi, Japanese rugby union player
Jiro Taniguchi, Japanese manga artist
Kei Taniguchi, Japanese football player
Kotaro Taniguchi, Japanese sprinter
Masaharu Taniguchi, Japanese New Thought leader
Masami Taniguchi, Japanese volleyball player
Nobuteru Taniguchi, Japanese racing driver
Noriko Taniguchi (born 1992), Japanese rugby sevens player
Norio Taniguchi, professor at Tokyo Science University
Senkichi Taniguchi, Japanese director
Shinya Taniguchi, Japanese swimmer
Shogo Taniguchi, Japanese football player
Shuhei Taniguchi, Japanese wrestler
Tadatsugu Taniguchi, Japanese immunologist
Toru Taniguchi, Japanese golfer
Yoshio Taniguchi, Japanese architect
Yukinori Taniguchi, Japanese racing driver, founder of Yuke's
Yuya Taniguchi, Japanese baseball player