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Railway line in the Kantō and Tōhoku regions of Japan

The Tōhoku Main Line (東北本線) is a railway line in Japan operated by the East Japan Railway Company (JR East). The line starts from Tokyo Station in Chiyoda, Tokyo and passes through such cities as Saitama, Utsunomiya, Fukushima, and Sendai, before reaching the end of the line in Morioka. The line originally extended to Aomori, but was truncated upon the extension of the Tōhoku Shinkansen beyond Morioka, which mostly parallels the Tōhoku Main Line. A portion of the Tōhoku Main Line is also shared with the Keihin–Tōhoku Line ( between Tokyo Station and Ōmiya Station in Ōmiya ku, Saitama) and the Saikyō Line ( between Akabane Station in the Kita ward of Tokyo and Ōmiya Station). The portion of the line between Tokyo Station and Kuroiso Station in Nasushiobara, Tochigi is referred to by JR East as the Utsunomiya Line, and the remaining section is referred to as the Tōhoku Line in regular service. Because of the difference in electrification south (1,500 V DC) and north (20 kV AC) of Kuroiso, there are no regularly scheduled passenger services that travel through that station.

These lists are separated by service patterns provided on the Tōhoku Main Line.

The section between and is known as the Utsunomiya Line.

StationJapaneseDistance (km)(from Tokyo)TransfersLocation 黒磯163.3 Utsunomiya LineNasushiobaraTochigi Prefecture 高久167.3 Nasu 黒田原171.5 豊原 176.7白坂182.0ShirakawaFukushima PrefectureShin Shirakawa新白河185.4JR East Tohoku ShinkansenNishigo

StationJapaneseDistance (km)(from Tokyo)TransfersLocation 新白河185.4JR East Tohoku ShinkansenNishigoFukushima Prefecture 白河188.2Shirakawa 久田野192.9 泉崎197.4Izumizaki 矢吹203.4Yabuki 鏡石208.8Kagamiishi 須賀川215.1Sukagawa 安積永盛221.8KōriyamaKōriyama 郡山226.7 日和田232.4 五百川236.9Motomiya 本宮240.7 杉田246.6Nihonmatsu 二本松250.3 安達254.5 松川259.5Fukushima 金谷川264.0 南福島269.4Fukushima 福島272.8

StationJapaneseDistance (km)(from Tokyo)TransfersLocationSendai 仙台351.8Aoba ku, SendaiMiyagi PrefectureHigashi Sendai 東仙台355.8Miyagino ku, SendaiIwakiri 岩切359.9Shin Rifu新利府2.5 (from Iwakiri)Branch line from IwakiriRifuRifu利府4.2 (from Iwakiri)Rikuzen Sannō 陸前山王362.2Tagajō, MiyagiKokufu Tagajō 国府多賀城363.5Shiogama 塩釜365.2 Senseki Tōhoku LineShiogamaMatsushima 松島375.2MatsushimaAtago 愛宕377.2Shinainuma 品井沼381.6Kashimadai 鹿島台386.6ŌsakiMatsuyama Machi 松山町391.5Kogota 小牛田395.0Misato

StationJapaneseDistance (km)(from Tokyo)TransfersLocationKogota小牛田395.0MisatoMiyagi PrefectureTajiri 田尻401.1ŌsakiSemine 瀬峰407.8KuriharaUmegasawa 梅ヶ沢411.5TomeNitta 新田416.2Ishikoshi 石越423.5Yushima 油島427.0IchinosekiIwate PrefectureHanaizumi 花泉431.2 清水原434.4Arikabe 有壁437.8KuriharaMiyagi PrefectureIchinoseki 一ノ関445.1IchinosekiIwate Prefecture

The construction of the Tōhoku Main Line began in the Kantō region and extended to the north end of Honshu, and the city of Aomori. It is one of oldest railway lines in Japan, with construction beginning in the late 19th century. Until 1 November 1906, the current Tōhoku Main Line was run by a private company Nippon Railway. In 1883, the first segment between Ueno and Kumagaya opened. In 1885, it was extended to Utsunomiya, but the Tone River had to be crossed by boat. Following construction of the Tone River Bridge in 1886, Utsunomiya and Ueno were directly connected. The line gradually extended further to the north; to Kōriyama, Sendai, Ichinoseki and Morioka. In 1891, the segment between Morioka and Aomori opened, creating the longest continuous railway line in Japan. After 1906, the line was nationalized and became the Tōhoku Main Line operated by the Ministry of Railways. When Tokyo Station opened in 1925, the Tōhoku Main Line was extended from Ueno to the new station. Until the 1950s, this segment was used and many trains ran through both the Tōkaidō Main Line and Tōhoku Main Line. However, when the Tōhoku Shinkansen opened, it occupied land previously used for the tracks of mid and long distance Tōhoku Main Line trains. As a result, only a small number of commuter lines such as the Keihin–Tōhoku Line now operate to Tokyo from the north, making Tokyo Station's status as part of the Tōhoku Main Line somewhat circumspect. In 2002, the Tōhoku Shinkansen was extended from Morioka to Hachinohe and the operations of the local track segment between those two cities was turned over to Iwate Ginga Railway (IGR) and Aoimori Railway. With the extension of the Tōhoku Shinkansen to Shin Aomori station in 2010, the segment between Hachinohe and Aomori was delegated to the Aoimori Railway Company. The shortened Tōhoku Main Line is now the second longest line in Japan, after the Sanin Main Line. With the opening of the Ueno–Tokyo Line in March 2015, most longer distance trains once again operate directly through to the Tōkaidō Main Line via Tokyo Station, with the exception of some rush hour trains which terminate at Ueno Station.

The Tokyo to Omiya section was double tracked between 1892 and 1896, extended to Furukawa in 1908, Koyama the following year, and to Utsunomiya in 1913. The Iwanuma Sendai Iwakiri section was double tracked between 1920 & 1923 and the Utsunomiya Iwanuma section between 1959 and 1964. The Iwakiri Morioka Aomori section was double tracked between 1951 and 1968, including the realigned section between Iwakiri and Atago in 1962.

The Tokyo to Tabata section was electrified at 1,500 V DC in 1909, extended to Akabane in 1928, Omiya in 1932 and Kuroiso in 1959. Electrification was then continued north at 20 kV AC, reaching Fukushima in 1960, Sendai in 1961, Morioka in 1965, and Aomori in 1968.

Hasuda Station: The Bushu Railway operated a line to Kamine from 1924 until 1938.

Mamada Station: A gauge handcar line to Omoigawa operated between 1899 and 1917. Hoshakuji Station: A line servicing the Utsunomiya Army Airfield operated between 1942 and 1945. Ujiie Station: An gauge handcar line operated to Kitsuregawa between 1902 and 1918. Yaita Station: The Tobu Railway opened the gauge Tobu Yaita Line to Shin Takatoku (on the Tobu Kinugawa Line) on 1 March 1924. The line was converted to gauge in 1929, and closed on 30 June 1959. Nishi Nasuno Station: A line was opened by the Shiobara Railway to Shiobara in 1912. The line was electrified at 550 V DC in 1921, and closed in 1936. The Higashino Railway opened a line to Nasu Ogawa between 1918 and 1924, the line closing in 1968. At Otawara Station, it connected with the horse drawn tramway mentioned below for the three years they were both open. A gauge handcar line to Otawara opened in 1908. In 1917, it was converted to a horse drawn tramway, but closed in 1921. At Otawara Station, it connected with the Higashino Railway line mentioned above.

Shirakawa Station: A line to Iwaki Tanakura (on the Suigun Line) was opened by the Shirotana Railway in 1916. The line was nationalized in 1941, and closed in 1944. Plans to reopen the line in 1953 resulted in a decision to convert the line to a dedicated busway, which opened in 1957. Koriyama Station: The Fukushima Prefectural Government operated a gauge line to Miharu between 1891 and 1914. Matsukawa Station: A line to Iwashiro Kawamata operated from 1926 until 1972.

Hanamaki Station: An gauge line to Nishinamari Onsen was opened in 1915 by the Hanamaki Electric Railway, which then opened a second line, 8 km to Hanamaki Onsen in 1925. Both lines were electrified at 600 V DC. The latter closed in 1972, and the former in 1976.

Hachinohe Station: The Gonohe Electric Railway operated a line (not electrified, despite the company name) to Gonohe between 1929 and 1969. Misawa Station: The Towada Kanko Electric Railway Line operated between 1922 and 2012. Noheji Station: The Nanbu Jūkan Railway opened a line to Shichinohe in 1962. Freight services ceased in 1984, and the line closed in 1997.