Haruo Okada (; June 14, 1914 â 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 Shà Âichi Watanabe.