Events in the year 1968 in Japan.
|See also:||Other events of 1968|
History of Japan • Timeline • Years
- Emperor: Hirohito
- Prime Minister: Eisaku Satō (Liberal Democratic)
- Chief Cabinet Secretary: Toshio Kimura until November 30, Shigeru Hori
- Chief Justice of the Supreme Court: Masatoshi Yokota
- President of the House of Representatives: Mitsujirō Ishii
- President of the House of Councillors: Yūzō Shigemune
- Aichi Prefecture: Mikine Kuwahara
- Akita Prefecture: Yūjirō Obata
- Aomori Prefecture: Shunkichi Takeuchi
- Chiba Prefecture: Taketo Tomonō
- Ehime Prefecture: Sadatake Hisamatsu
- Fukui Prefecture: Heidayū Nakagawa
- Fukuoka Prefecture: Hikaru Kamei
- Fukushima Prefecture: Morie Kimura
- Gifu Prefecture: Saburō Hirano
- Gunna Prefecture: Konroku Kanda
- Hiroshima Prefecture: Iduo Nagano
- Hokkaido: Kingo Machimura
- Hyogo Prefecture: Motohiko Kanai
- Ibaraki Prefecture: Nirō Iwakami
- Ishikawa Prefecture: Yōichi Nakanishi
- Iwate Prefecture: Tadashi Chida
- Kagawa Prefecture: Masanori Kaneko
- Kagoshima Prefecture: Saburō Kanemaru
- Kanagawa Prefecture: Bunwa Tsuda
- Kochi Prefecture: Masumi Mizobuchi
- Kumamoto Prefecture: Kōsaku Teramoto
- Kyoto Prefecture: Torazō Ninagawa
- Mie Prefecture: Satoru Tanaka
- Miyagi Prefecture: Shintaro Takahashi
- Miyazaki Prefecture: Hiroshi Kuroki
- Nagano Prefecture: Gon'ichirō Nishizawa
- Nagasaki Prefecture: Katsuya Sato
- Nara Prefecture: Ryozo Okuda
- Niigata Prefecture: Shiro Watari
- Oita Prefecture: Kaoru Kinoshita
- Okayama Prefecture: Takenori Kato
- Osaka Prefecture: Gisen Satō
- Saga Prefecture: Sunao Ikeda
- Saitama Prefecture: Hiroshi Kurihara
- Shiga Prefecture: Kinichiro Nozaki
- Shiname Prefecture: Choemon Tanabe
- Shizuoka Prefecture: Yūtarō Takeyama
- Tochigi Prefecture: Nobuo Yokokawa
- Tokushima Prefecture: Yasunobu Takeichi
- Tokyo: Ryōkichi Minobe
- Tottori Prefecture: Jirō Ishiba
- Toyama Prefecture: Minoru Yoshida
- Wakayama Prefecture: Masao Ohashi
- Yamagata Prefecture: Tōkichi Abiko
- Yamaguchi Prefecture: Masayuki Hashimoto
- Yamanashi Prefecture: Kunio Tanabe
- January 23 – Mushi (Osamu Tezuka) Production, as predecessor of Tezuka Production was founded.
- Unknown date: Komeda Coffeehouse, as known well coffeehouse chain in nationwide, founded in Nagoya.
- February 19: 1968–69 Japanese university protests sparked over a dispute within the University of Tokyo medical school.
- April 1: 1968 Hyūga-nada earthquake
- April 1: Abukuma Express line opened
- April 12: Kasumigaseki Building opened, was the first modern office skyscraper and tallest building in Tokyo until 1970.
- May 16: 1968 Tokachi earthquake
- June 16: Terrorist incident on the Yokosuka Line kills 1.
- June 26: Bonin Islands returned to Japan by United States Navy after 23-year occupation.
- July 1: Postal code system adopted in Japan.
- July 7: Shintaro Ishihara and others are elected to the House of Councillors.
- August 18: 1968 Hida river bus accident, two charter buses occur debris flow, following push into Hida River, Gifu Prefecture, due after heavy torrential rain. According to local official confirmed report, 104 people lost to lives with one of worst road accident in Northeast Asia.
- October: Golgo 13, which becomes the longest-running ongoing manga, makes its debut on Big Comic.
- October 21: New Left forces occupy Shinjuku Station for International Anti-War Day. Arrests are made.
- November 2: A resort hotel fire in Arima Spa, Kobe, Hyogo Prefecture, according to Fire and Disaster Management Agency official confirmed report, 30 person lost to lives, with 44 person wounded.
- January 1: Miki Higashino, pianist and composer
- February 22: Kazuhiro Sasaki, former Japan professional and Major League Baseball pitcher
- April 1
- April 11: Yōichi Okabayashi, former professional baseball pitcher
- May 1: Akiko Kijimuta, former tennis player
- May 4: Momoko Kikuchi, actress and singer
- July 5: Ken Akamatsu
- November 12: Aya Hisakawa, voice actress
- November 25: Shingo Takatsu, professional baseball coach and former pitcher
- December 25: Koichi Ogata, former baseball manager and player