Teijiro Tanikawa (谷川 禎次郎, Tanikawa Teijirō, born 20 December 1932) was a freestyle swimmer from Japan.

He competed in the 1952 Summer Olympics in Helsinki, Finland, and earned a silver medal in the 4 × 200 m freestyle relay team with teammates Toru Goto, Hiroshi Suzuki and Yoshihiro Hamaguchi.

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