Michio Watanabe (July 28, 1923 – September 15, 1995) was a Japanese political figure. He was born in Ōtawara, Tochigi and graduated from the Tokyo College of Commerce (now Hitotsubashi University) in 1942. He worked as a reporter for the Yomiuri Shimbun, a certified tax accountant, and a member of Tochigi prefectural assembly before serving as a member of House of Representatives of Japan. He was Health Minister from 1976 to 1977, Minister of Agriculture, Forestry and Fisheries (Japan) from 1978 to 1979, and Minister of Finance from 1980 to 1982. He served as Deputy Prime Minister of Japan and Minister for Foreign Affairs from 1991 to 1993. He died from pancreatic cancer in 1995.
His eldest son, Yoshimi Watanabe, is currently serving as a politician of Your Party.