Hideo Hiraoka (平岡 秀夫 , Hiraoka Hideo , born January 14, 1954) is a Japanese politician of the Democratic Party of Japan, a member of the House of Representatives in the Diet (national legislature). A native of Iwakuni, Yamaguchi, Hiraoka passed the bar exam and civil service exam prior to his graduation at the University of Tokyo. In 1976 he entered the Ministry of Finance which he joined before resigning in 1998 after working in the National Tax Agency's corporate tax department