List of railway lines in Japan (J to P)

This is a list of railway lines in Japan whose names, using the Hepburn romanization system, fall alphabetically between J and P. This list includes both current and former lines. It is generally organized by operating company, then by line name. Within each line, sections are listed in a generally west-to-east or north-to-south order.

JR Group (Japan Railways Group)

• JR Jōban Line: Primarily serving the Pacific coast north of Tokyo.

• JR Jōetsu Line: Connecting Takasaki in Gunma Prefecture with Niigata in Niigata Prefecture.

• JR Kagoshima Main Line: A major line connecting Mojiko in Kitakyushu with Kagoshima.

• JR Kakogawa Line: Branching off from the JR Kobe Line at Kakogawa and serving the Kakogawa River valley.

• JR Kamaishi Line: Serving the coastal area of Iwate Prefecture.

• JR Karasuyama Line: A short branch line in Tochigi Prefecture.

• JR Kasanui Line: Connecting Shinshiro and Toyokawa.

• JR Katamachi Line: Also known as the Gakkentoshi Line, connecting Kyobashi Station in Osaka with Kizu Station in Kyoto.

• JR Kawagoe Line: Connecting Omiya and Komagawa.

• JR Keihin-Tōhoku Line: A heavily used urban line connecting Saitama and Tokyo, operating through-service with the Negishi Line.

• JR Keiyō Line: Serving the Tokyo Bay coastal area, including Tokyo Disneyland.

• JR Kesennuma Line: (Partial Bus Rapid Transit operation after damage from the 2011 Tōhoku earthquake and tsunami).

• JR Kibi Line: Connecting Okayama and Bitchū-Takahashi.

• JR Kinou Line: Coastal route along the Kii Peninsula connecting Kameyama and Wakayama.

• JR Kitakami Line: Connecting Kitakami and Yokote.

• JR Kobe Line: A section of the Tōkaidō Main Line and Sanyō Main Line between Osaka and Kobe.

• JR Kōdaku Line: Connecting Kogota and Kesennuma.

• JR Komachi Line: (Name of Akita Shinkansen service).

• JR Konan Line: Connecting Takamatsu and Kotohira in Kagawa Prefecture.

• JR Kosei Line: A shortcut route along the western shore of Lake Biwa.

• JR Kushiro Main Line: Connecting Kushiro and Takikawa in Hokkaido.

• JR Kyōto Line: Section of the Tōkaidō Main Line between Kyoto and Osaka.

• JR Maizuru Line: Branching from the Sanin Main Line at Ayabe and serving Maizuru.

• JR Mannen Line: A short branch in Fukuoka Prefecture.

• JR Mine Line: Connecting Asa and Nagatoshi.

• JR Mito Line: Connecting Oyama and Tomobe.

• JR Mugi Line: Serving the eastern part of Tokushima Prefecture.

• JR Musashino Line: A freight bypass line around Tokyo.

• JR Nagasaki Main Line: Connecting Tosu and Nagasaki.

• JR Nanao Line: Serving the Noto Peninsula in Ishikawa Prefecture.

• JR Narita Line: Connecting Sakura with Narita Airport and Abiko.

• JR Negishi Line: Connecting Yokohama and Ōfuna, operating through-service with the Keihin-Tōhoku Line.

• JR Niitsu Line: Connecting Niitsu and Higashi-Sanjō.

• JR Nikko Line: Connecting Utsunomiya and Nikkō.

• JR Obama Line: Serving the Wakasa region of Fukui Prefecture.

• JR Oga Line: Serving the Oga Peninsula in Akita Prefecture. Also known as the Resort Shirakami Line.

• JR Oito Line: Connecting Matsumoto in Nagano Prefecture with Itoigawa in Niigata Prefecture.

• JR Ōme Line: Branching from the Chūō Main Line at Tachikawa and serving the western suburbs of Tokyo.

• JR Onoda Line: Connecting Onoda and Suzume.

• JR Osafune Line: A short branch in Okayama Prefecture.

• JR Otō Line: Connecting Shin-Iizuka and Tagawa-Ita.

• JR San'in Main Line: A major line along the Sea of Japan coast.

• JR Sangu Line: Connecting Taki and Toba.

• JR Sanyo Main Line: Connecting Kobe and Moji.

• JR Sassho Line: Also known as the Gakuen Toshi Line, connecting Sapporo and Hokkaidō-Iryōdaigaku. A portion between Hokkaidō-Iryōdaigaku and Shin-Totsukawa was discontinued in 2020.

• JR Senseki Line: Connecting Sendai and Ishinomaki.

• JR Seto-Ōhashi Line: Serving the Seto Great Bridge connecting Honshu and Shikoku.

• JR Shikoku Yosan Line: Connecting Takamatsu and Uwajima.

• JR Shin'etsu Main Line: Connecting Takasaki and Niigata.

• JR Shinkansen (Various Names): A network of high-speed railway lines including Tōkaidō Shinkansen, Sanyō Shinkansen, Tōhoku Shinkansen, Jōetsu Shinkansen, Hokuriku Shinkansen, Kyushu Shinkansen, and Hokkaido Shinkansen.

• JR Takasaki Line: A section of the Tōkaidō Main Line and Takasaki Line between Ueno and Takasaki.

• JR Takayama Main Line: Connecting Gifu and Toyama.

• JR Tōkaidō Main Line: A major trunk line connecting Tokyo and Kobe.

• JR Tōhoku Main Line: Connecting Ueno and Morioka.

• JR Tōkai Tōkaidō Main Line: Section of Tōkaidō Main Line within Central Japan Railway's operating area.

• JR Tōkaidō Shinkansen: The first high-speed railway line in Japan, connecting Tokyo and Osaka.

• JR Tōhoku Shinkansen: Connecting Tokyo and Shin-Aomori.

• JR Tottori Line: Connecting Kamigori and Chizu.

• JR Tsubasa Line: (Name of Yamagata Shinkansen service).

• JR Tsugaru Line: Connecting Aomori and Minmaya.

• JR Tsuyama Line: Connecting Okayama and Tsuyama.

• JR Ube Line: Serving the industrial area of Yamaguchi Prefecture.

• JR Uetsu Main Line: Along the Sea of Japan coast, connecting Niitsu and Akita.

• JR Uno Line: Connecting Okayama and Uno.

• JR Watarase Keikoku Line: (Formerly JR Ashio Line; transferred to a third-sector railway).

• JR Yamada Line: Coastal route along Sanriku connecting Morioka and Miyako.

• JR Yamagata Line: Connecting Fukushima and Yamagata.

• JR Yamanote Line: A circular railway line in Tokyo, serving as a major urban transportation artery.

• JR Yosan Line: Connecting Takamatsu and Uwajima.

• JR Yume Line: Connecting Sakurajima and Universal City Station (Universal Studios Japan).

Private Railways and Other Operators

• Joshin Railway: Serving Gunma Prefecture.

• Kainan Railway:

• Keihan Electric Railway: Operating in the Kyoto-Osaka-Kobe metropolitan area.

• Keiō Corporation: Operating in the western part of the Tokyo metropolitan area.

• Keisei Electric Railway: Primarily serving Chiba Prefecture and connecting to Narita Airport.

• Kitakinki Tango Railway: (Formerly part of the JR Sanin Main Line and Miyazu Line; now operated as Kyoto Tango Railway).

• Kobe Electric Railway: Serving the northern part of Kobe.

• Kominato Railway: Serving Chiba Prefecture.

• Kumamoto Electric Railway: Operating in Kumamoto Prefecture.

• Kyoto Tango Railway: Operated by Willer Trains in Kyoto.

• Meitetsu (Nagoya Railroad): A major private railway operator in the Nagoya region.

• Nankai Electric Railway: Operating in the southern part of Osaka Prefecture and Wakayama Prefecture.

• Nishi-Nippon Railroad (Nishitetsu): Operating in Fukuoka Prefecture.

• Odakyu Electric Railway: Connecting Tokyo with the areas southwest of the city, including Hakone.