← 1954 1953 1952 1955 in Japan → 1956 1957 1958
Decades:	1930s 1940s 1950s 1960s 1970s
See also:	Other events of 1955 History of Japan Timeline Years

Events from the year 1955 in Japan.

Incumbents

• Emperor: Hirohito^[1]
• Prime Minister: Ichirō Hatoyama
• Chief Cabinet Secretary: Ryutaro Nemoto
• Chief Justice of the Supreme Court: Kōtarō Tanaka
• President of the House of Representatives: Tō Matsunaga until January 24, Shūji Masutani from March 18
• President of the House of Councillors: Yahachi Kawai

Governors

• Aichi Prefecture: Mikine Kuwahara
• Akita Prefecture: Tokuji Ikeda (until 29 April); Yūjirō Obata (starting 30 April)
• Aomori Prefecture: Bunji Tsushima
• Chiba Prefecture: Hitoshi Shibata
• Ehime Prefecture: Sadatake Hisamatsu
• Fukui Prefecture: Harukazu Obata (until 4 February); Seiichi Hane (starting 26 April)
• Fukuoka Prefecture: Katsuji Sugimoto (until 7 April); Taichi Uzaki (starting 26 April)
• Fukushima Prefecture: Sakuma Ootake
• Gifu Prefecture: Kamon Muto
• Gunma Prefecture: Shigeo Kitano
• Hiroshima Prefecture: Hiroo Ōhara
• Hokkaido: Toshifumi Tanaka
• Hyogo Prefecture: Masaru Sakamoto
• Ibaraki Prefecture: Yoji Tomosue
• Ishikawa Prefecture: Wakio Shibano (until 19 January); Jūjitsu Taya (starting 24 February)
• Iwate Prefecture: Kenkichi Kokubun (until 29 April); Senichi Abe (starting 30 April)
• Kagawa Prefecture: Masanori Kaneko
• Kagoshima Prefecture: Katsushi Terazono
• Kanagawa Prefecture: Iwataro Uchiyama
• Kochi Prefecture: Wakaji Kawamura (until 11 December); Masumi Mizobuchi (starting 12 December)
• Kumamoto Prefecture: Saburō Sakurai
• Kyoto Prefecture: Torazō Ninagawa
• Mie Prefecture: Masaru Aoki (until 18 March); Satoru Tanaka (starting 23 April)
• Miyagi Prefecture: Otogorō Miyagi
• Miyazaki Prefecture: Nagashige Tanaka (until 30 March); Jingo Futami (starting 23 April)
• Nagano Prefecture: Torao Hayashi
• Nagasaki Prefecture: Takejirō Nishioka
• Nara Prefecture: Ryozo Okuda
• Niigata Prefecture: Shohei Okada (until 29 April) Kazuo Kitamura (starting 30 April)
• Oita Prefecture: Tokuju Hosoda (until 27 April); Kaoru Kinoshita (starting 28 April)
• Okayama Prefecture: Yukiharu Miki
• Osaka Prefecture: Bunzō Akama
• Saga Prefecture: Naotsugu Nabeshima
• Saitama Prefecture: Yuuichi Oosawa
• Shiga Prefecture: Kotaro Mori
• Shiname Prefecture: Yasuo Tsunematsu
• Shizuoka Prefecture: Toshio Saitō
• Tochigi Prefecture: Juukichi Kodaira (until 5 January); Kiichi Ogawa (starting 7 February)
• Tokushima Prefecture: Kuniichi Abe (until 30 March); Kikutaro Hara (starting 25 April)
• Tokyo: Seiichirō Yasui
• Tottori Prefecture: Shigeru Endo
• Toyama Prefecture: Kunitake Takatsuji
• Wakayama Prefecture: Shinji Ono
• Yamagata Prefecture: Michio Murayama (until 20 January); Tōkichi Abiko (starting 20 February)
• Yamaguchi Prefecture: Taro Ozawa
• Yamanashi Prefecture: Hisashi Amano

Events

• January 28 – Benesse Corporation was founded, as predecessor name was Fukutake Shoten.^{[citation needed]}
• February 17 - According to Japan Fire and Disaster Management Agency official confirmed report, Seibo no Sono (Our Lady's Garden) fire in Totsuka-ku, Yokohama, total 99 person were death.^{[page needed]}
• February 27 - 1955 Japanese general election
• April Unknown date – Bunka Shutter was founded, as predecessor name was Nippon Bunka Steel Door.^{[page needed]}
• April 7 - Radio Tokyo TV (now Tokyo Broadcasting System Television (TBS)) begins broadcasting.
• April 16–17 - Abe coal mine debris collapse, due to heavy torrential rain hit in Sasebo, Nagasaki Prefecture, resulting tn 73 persons death, according to JFDMA official confirmed report.^[2]
• April 21 - Opening of Gokō Station
• May 11 - Shiun Maru disaster
• May 14 - According to Japan National Police Agency official confirmed report, a charter bus plunged into the Kitakami River in Iwate Prefecture, resulting in twelve deaths and twenty-eight injured.^{[page needed]}
• July 28- According to JFDMA official confirmed report, 36 junior school students died when a high wave hit, during school swimming lesson in Nakakawara beach, Tsu, Mie Prefecture.^{[page needed]}
• September 3 - Yumiko-chan incident
• November 1 - According to JFDMA official confirmed report, Moshiri Coal mine gas explosion hit in Akabira, Hokkaido, official death toll number is 60, with 17 person were wounded.^{[page needed]}
• November 15 - Japan Liberal Party and Democratic Party of Japan were unified, ruling Liberal Democratic Party of Japan has started.^{[page needed]}
• Establishment of Akkeshi Prefectural Natural Park

Births

• January 13 - Ran Itō, actress
• January 15 - Mayumi Tanaka, voice actress
• January 17 - Mami Koyama, voice actress
• January 20 - Hiromi Ōta, singer
• January 22 - Keiko Takahashi, actress
• January 28 - George Tokoro, television personality and singer-songwriter
• February 12 - Ai Satō, voice actress
• February 13 - Akiko Yano, singer-songwriter
• March 2 - Shoko Asahara, cult leader (Aum Shinrikyo) (d. 2018)
• March 16 - Jiro Watanabe, boxer
• March 20 - Mariya Takeuchi, singer-songwriter
• April 5 - Akira Toriyama, Manga artist
• April 7 - Akira Nishino, soccer player and manager
• April 13 - Hideki Saijo, singer and actor (d. 2018)
• April 15 - Ryūtarō Nakamura, Anime director (d. 2013)
• April 23 - Fumi Hirano, voice actress and essayist
• April 29 - Yūko Tanaka, actress
• May 9 – Masayuki Kakefu, former professional baseball player
• May 24 - Rumiko Ukai, voice actress
• May 25 - Suguru Egawa, baseball player
• May 26 - Masaharu Morimoto, chef
• May 30 - Nakamura Kanzaburō XVIII, Kabuki actor (d. 2012)
• June 1 - Chiyonofuji Mitsugu, sumo wrestler (58th Yokozuna grand champion)
• June 26 - Yoko Gushiken, boxer
• July 1 - Sanma Akashiya, comedian and actor
• August 20 - Agnes Chan, television personality
• August 30 - Mayumi Muroyama, Manga artist
• September 4 - Hiroshi Izawa, actor
• September 24 - Shinbo Nomura, Manga artist
• October 18 - Hiromi Go, singer
• October 19 - LaSalle Ishii, television personality
• October 21 - Yasukazu Hamada, politician
• October 29 - Etsuko Shihomi, actress
• November 3 - Yukihiko Tsutsumi, film director
• November 14 - Koichi Nakano, bicycle rider
• December 9 - Asashio Tarō IV, sumo wrestler
• December 16 - Chiharu Matsuyama, singer-songwriter
• December 24 - Mizuho Fukushima, politician

Deaths

• February 17 - Ango Sakaguchi, author (b. 1906)
• October 15 - Fumio Hayasaka, composer (b. 1914)^[3]
• October 25 - Sadako Sasaki, hibakusha (b. 1943)