1980 in Japan - Incumbents

Incumbents

• Emperor: Hirohito (Emperor Shōwa)
• Prime Minister: Masayoshi Ōhira (L–Kagawa) until June 12, Zenkō Suzuki (L–Iwate) from July 17
• Chief Cabinet Secretary and acting Prime Minister from June 12 to July 17: Masayoshi Itō (L–Fukushima) until July 17, Kiichi Miyazawa (L–Hiroshima)
• Chief Justice of the Supreme Court: Takaaki Hattori
• President of the House of Representatives: Hirokichi Nadao (L–Hiroshima) until May 19, Hajime Fukuda (L–Fukui) from July 17
• President of the House of Councillors: Ken Yasui (L–Tokyo) until July 7, Masatoshi Tokunaga (L–national) from July 17
• Diet sessions: 91st (regular session opened in December 1979, to May 19), 92nd (special, July 17 to July 26), 93rd (extraordinary, September 29 to November 29), 94th (regular, December 22 to 1981, June 6)