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Tetsuzō Tanikawa (谷川 徹三 Tanikawa Tetsuzō, 26 May 1895 - 27 September 1989) was a Japanese philosopher who promoted the concept of World Government for purposes of peace.
Tanikawa introduced philosophical ideas in Japan through his translations of Georg Simmel and Immanuel Kant. His major philosophical influence was Johann Wolfgang von Goethe. He questioned how world peace could be realized in the face of nuclear proliferation at the beginning of the Cold War.
He was the father of the poet Shuntarō Tanikawa.