Haruo Okada (Japanese: 岡田春夫; June 14, 1914 – November 6, 1991) was a Japanese politician. He was a member of the Socialist Party of Japan. He was a member of the House of Representatives of Japan for the multi-member constituency Hokkaido's 4th district. He was a recipient of the Order of the Rising Sun. He served alongside Seiichi Ikehata, Tatsuo Takahashi and Shōichi Watanabe.

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