2015 in Japan
The following lists events that happened during 2015 in Japan. Year: Heisei 27 Imperial year: 2675 == Incumbents == Emperor: Akihito Prime Minister: Shinzō Abe (L–Yamaguchi) Chief Cabinet Secretary: Yoshihide Suga (L–Kanagawa) Chief Justice of the Supreme Court: Itsurō Terada President of the House of Representatives: Nobutaka Machimura until April 20, Tadamori Oshima from April 21 President of the House of Councillors: Masaaki Yamazaki Diet sessions: 189th (regular, January 26 to June 24) === Governors === Aichi Prefecture: Hideaki Omura Akita Prefecture: Norihisa Satake Aomori Prefecture: Shingo Mimura Chiba Prefecture: Kensaku Morita Ehime Prefecture: Tokihiro Nakamura Fukui Prefecture: Issei Nishikawa Fukuoka Prefecture: Hiroshi Ogawa Fukushima Prefecture: Masao Uchibori Gifu Prefecture: Hajime Furuta Gunma Prefecture: Masaaki Osawa Hiroshima Prefecture: Hidehiko Yuzaki Hokkaido: Harumi Takahashi Hyogo Prefecture: Toshizō Ido Ibaraki Prefecture: Masaru Hashimoto Ishikawa Prefecture: Masanori Tanimoto Iwate Prefecture: Takuya Tasso Kagawa Prefecture: Keizō Hamada Kagoshima Prefecture: Satoshi Mitazono Kanagawa Prefecture: Yuji Kuroiwa Kochi Prefecture: Masanao Ozaki Kumamoto Prefecture: Ikuo Kabashima Kyoto Prefecture: Keiji Yamada Mie Prefecture: Eikei Suzuki Miyagi Prefecture: Yoshihiro Murai Miyazaki Prefecture: Shunji Kōno Nagano Prefecture: Shuichi Abe Nagasaki Prefecture: Hōdō Nakamura Nara Prefecture: Shōgo Arai Niigata Prefecture: Hirohiko Izumida Oita Prefecture: Katsusada Hirose Okayama Prefecture: Ryuta Ibaragi Okinawa Prefecture: Takeshi Onaga Osaka Prefecture: Ichirō Matsui Saga Prefecture: Hiroki Sakai (until 14 January); Yoshinori Yamaguchi (starting 14 January) Saitama Prefecture: Kiyoshi Ueda Shiga Prefecture: Taizō Mikazuki Shiname Prefecture: Zenbe Mizoguchi Shizuoka Prefecture: Heita Kawakatsu Tochigi Prefecture: Tomikazu Fukuda Tokushima Prefecture: Kamon Iizumi Tokyo: Yōichi Masuzoe Tottori Prefecture: Shinji Hirai Toyama Prefecture: Takakazu Ishii Wakayama Prefecture: Yoshinobu Nisaka Yamagata Prefecture: Mieko Yoshimura Yamaguchi Prefecture: Tsugumasa Muraoka Yamanashi Prefecture: Hitoshi Gotō == Events == === January === January 8 – The United States National Highway Traffic Safety Administration fines Honda a record 70 million dollars for grossly under-reporting fatal accidents and injuries to the government.