List of railway lines in Japan (J to P)

J

*Jikkoku Cable Line (Izuhakone Railway)
*Jimbō Line (Group name. Composed of Kōbe Line and Takarazuka Line. Hankyu Corporation)
*Jōban Line (East Japan Railway Company)
*Jōetsu Line (East Japan Railway Company)
*Jōetsu Shinkansen (East Japan Railway Company)
*Jōhana Line (West Japan Railway Company)
*Jōhoku Line (Central Japan Railway Company (tracks and services), Tokai Transport Service (services) )
*Jōhoku Line (Iyo Railway)
*Jōmō Line (Jomo Electric Railway)
*Jōnan Line (Iyo Railway)
*Jōshin Line (Joshin Dentetsu)
*Jōsō Line (Kanto Railway)
*JR Kōbe Line (Nickname. West Japan Railway Company)
*JR Kyōto Line (Nickname. West Japan Railway Company)
*JR Takarazuka Line (Nickname. West Japan Railway Company)
*JR Tōzai Line (West Japan Railway Company)
*JR Yumesaki Line (Nickname. West Japan Railway Company)
*Jukkokutōge Cable Car (Common name. Izuhakone Railway)

K

*Kabe Line (West Japan Railway Company)
*Kada Line (Nankai Electric Railway)
*Kagoshima Main Line (Kyushu Railway Company)
*Kaigan Line (Kobe Municipal Transportation Bureau)
*Kaikyō Line (Hokkaido Railway Company)
*Kaizuka Line (Nishi-Nippon Railroad)
*Kakamigahara Line (Nagoya Railroad)
*Kakogawa Line (West Japan Railway Company)
*Kamaishi Line (East Japan Railway Company)
*Kameido Line (Tobu Railway)
*Kamidaki Line (Toyama Chiho Railway)
*Kamiiida Line (Common name. Transportation Bureau City of Nagoya)
*Kamikōchi Line (Matsumoto Electric Railway)
*Kamikumamoto Line (Kumamoto City Transportation Bureau)
*Kanagawa Eastern Line (Sagami Railway, Tokyo Kyuko Electric Railway) "Planned"
*Kanamachi Line (Keisei Electric Railway)
*Kanazawa Seaside Line (Yokohama New Transit)
*Kanden Tunnel Trolleybus (Common name. Kansai Electric Power Company)
*Kansai Airport Line (Translation. West Japan Railway Company)
*Kansai Kūkō Line (West Japan Railway Company)
*Kansai Main Line (Central Japan Railway Company, West Japan Railway Company)
*Karasuma Line (Kyoto Municipal Transportation Bureau)
*Karasuyama Line (East Japan Railway Company)
*Karatsu Line (Kyushu Railway Company)
*Kasamatsu Cable (Common name. Tango Kairiku Kotsu)
*Kashihara Line (Kintetsu Corporation)
*Kashii Line (Kyushu Railway Company)
*Kashima Line (East Japan Railway Company)
*Kashima Railway Line (Kashima Railway) "Closed"
*Kashima Rinkō Line (Kashima Rinkai Railway)
*Katamachi Line (West Japan Railway Company)
*Katano Line (Keihan Electric Railway)
*Katsuyama Eiheiji Line (Echizen Railway)
*Kawagoe Line (East Japan Railway Company)
*Kawaguchiko Line (Fuji Kyuko)
*Kawasaki Longitudinal Rapid Railway (Kawasaki City Transportation Bureau) "Planned"
*Kawasaki Municipal Subway (Common name. Kawasaki City Transportation Bureau) "Planned"
*Keihan Main Line (Keihan Electric Railway)
*Keihanna Line (Kintetsu Corporation)
*Keihin-Tōhoku Line (Common name. East Japan Railway Company)
*Keikyū Main Line (Common name. Keihin Electric Express Railway)
*Keiō Line (Keio Electric Railway)
*Keiō New Line (Common name. Keio Electric Railway)
*Keisei Main Line (Common name. Keisei Electric Railway)
*Keishin Line (Keihan Electric Railway)
*Keiyō Line (East Japan Railway Company)
*Kengun Line (Kumamoto City Transportation Bureau)
*Kesennuma Line (East Japan Railway Company)
*Kibi Line (West Japan Railway Company)
*Kikuchi Line (Kumamoto Electric Railway)
*Kinokuni Line (Nickname. West Japan Railway Company)
*Kintetsu Link Line (Sangi Railway)
*Kinugawa Line (Tobu Railway)
*Kiryū Line (Tobu Railway)
*Kisei Main Line (Central Japan Railway Company, West Japan Railway Company)
*Kishigawa Line (Wakayama Electric Railway)
*Kishin Line (West Japan Railway Company)
*Kishū Railway Line (Kishu Railway)
*Kisuki Line (West Japan Railway Company)
*Kita-Alpes Line (Nickname. East Japan Railway Company, West Japan Railway Company)
*Kita-Ayase Branch Line (Common name. Tokyo Metro)
*Kita-Matsue Line (Ichibata Electric Railway)
*Kitame Line (Common name. Shimabara Railway)
*Kitakami Line (East Japan Railway Company)
*Kitano Line (Keifuku Electric Railroad)
*Kitaōji Line (Common name. Freight. Japan Freight Railway Company)
*Kita-Riasu Line (Sanriku Railway)
*Kitto Line (Kyushu Railway Company)
*JR Kōbe Line (Nickname. West Japan Railway Company)
*Kōbe Main Line (Hankyu Corporation)
*Kodomo-no-Kuni Line (Yokohama Minatomirai Railway Company (services), Tokyo Kyuko Electric Railway (tracks))
*Kōen-Toshi Line (Kobe Electric Railway)
*Koizumi Line (Tobu Railway)
*Kokubunji Line (Seibu Railway)
*Kokura Line (Kitakyushu Urban Monorail)
*Kokusai Bunka Kōen Toshi Line (Osaka Rapid Railway)
*Komaki Line (Nagoya Railroad)
*Kominato Railway Line (Kominato Railway)
*Kōnan Line (Konan Railway)
*Kosaka Line (Freight. Kosaka Smelting & Refining)
*Kosaka Railway Kosaka Line (Freight. Common name. Kosaka Smelting & Refining)
*Kosei Line (West Japan Railway Company)
*Kōtō Line (Freight. Mizushima Rinkai Railway)
*Kotohira Line (Takamatsu-Kotohira Electric Railroad)
*Kōtoku Line (Shikoku Railway Company)
*Koumi Line (East Japan Railway Company)
*Kōwa Line (Nagoya Railroad)
*Kōya Line (Nankai Electric Railway)
*Kōyō Line (Hankyu Corporation)
*Kūkō Line (Fukuoka City Transportation Bureau)
*Kūkō Line (Keihin Electric Express Railway)
*Kūkō Line (Nickname. Kyushu Railway Company)
*Kūkō Line (Nagoya Railroad)
*Kūkō Line (Nankai Electric Railway)
*Kurama Line (Eizan Electric Railway)
*Kuramayama Cable Car (Kurama-dera Temple)
*Kure Line (West Japan Railway Company)
*Kureha Line (Toyama Chiho Railway)
*Kurihama Line (Keihin Electric Express Railway)
*Kurihara Den'en Railway Line (Kurihara Den'en Railway) "Closed"
*Kurobe Cable Car (Common name. Tateyama Kurobe Kanko)
*Kurobe Gorge Railway Main Line (Common name. Kurobe Gorge Railway)
*Kururi Line (East Japan Railway Company)
*Kusatsu Line (West Japan Railway Company)
*Kuzuryū Line (Nickname. West Japan Railway Company)
*Kyōto Line (Kintetsu Corporation)
*JR Kyōto Line (Nickname. West Japan Railway Company)
*Kyōto Main Line (Hankyu Corporation)
*Kyūdai Main Line (Kyushu Railway Company)
*Kyūshū Shinkansen (Kyushu Railway Company)

L

"Lines just with numbers, such as "Line 1", are listed separately."
*Linimo (Nickname. Aichi Rapid Transit)

M

*Main Line (Hakodate City Transportation Bureau)
*Main Line (Hanshin Electric Railway)
*Main Line (Hiroshima Electric Railway)
*Main Line (Keihin Electric Express Railway)
*Main Line (Keisei Electric Railway)
*Main Line (Kurobe Gorge Railway)
*Main Line (Nagasaki Electric Tramway)
*Main Line (Ohmi Railway)
*Main Line (Sagami Railway)
*Main Line (Sanyo Electric Railway)
*Main Line (Toyama Chiho Railway) (Railway)
*Main Line (Toyama Chiho Railway) (Tramway)
*Maizuru Line (West Japan Railway Company)
*Man'yō Line (Nickname. Man'yo Line)
*Marunouchi Branch Line (Tokyo Metro)
*Marunouchi Line (Tokyo Metro)
*Maya Cable Line (Kobe City Urban Development)
*Meguro Line (Tokyo Kyuko Electric Railway)
*Meijō Line (Common name. Transportation Bureau City of Nagoya)
*Meikō Line (Common name. Transportation Bureau City of Nagoya)
*Meishō Line (Central Japan Railway Company)
*Metro Seven (Operator undecided) "Planned"
*Midōsuji Line (Osaka Municipal Transportation Bureau)
*Mikajiri Line (Freight. Chichibu Railway)
*Mikawa Line (Nagoya Railroad)
*Miki Line (Miki Rail-Bus)
*Mikuni Awara Line (Echizen Railway)
*Minami Line (Hiroshima Electric Railway)
*Minami-Alpes Abt Line (Nickname. Oigawa Railway)
*Minamime Line (Common name. Shimabara Railway)
*Minami-Ōsaka Line (Kintetsu Corporation)
*Minami-Riasu Line (Sanriku Railway)
*Minato Line (Hitachinaka Kaihin Railway)
*Minatomirai 21 Line (Yokohama Minatomirai Railway Company)
*Minatomirai Line (Common name. Yokohama Minatomirai Railway Company)
*Mine Line (West Japan Railway Company)
*Minobu Line (Central Japan Railway Company)
*Minoo Line (Hankyu Corporation)
*Misumi Line (Kyushu Railway Company)
*Mita Line (Tokyo Metropolitan Bureau of Transportation)
*Mitake Tozan Cable (Common name. Mitake Tozan Railway)
*Mito Line (East Japan Railway Company)
*Miyafuku Line (Kita-Kinki Tango Railway)
*Miyajidake Line (Former name. Nishi-Nippon Railroad)
*Miyajima Line (Hiroshima Electric Railway)
*Miyazaki Airport Line (Translation. Kyushu Railway Company)
*Miyazaki Kūkō Line (Kyushu Railway Company)
*Miyazu Line (Kita-Kinki Tango Railway)
*Mizue Line (Freight. Kanagawa Rinkai Railway)
*Mizuma Line (Mizuma Railway)
*Mizushima Main Line (Mizushima Rinkai Railway)
*Monkey Park Monorail Line (Nagoya Railroad)
*Mooka Line (Mooka Railway)
*Mori to Mizu to Roman no Tetsudō (The Railway of Forest, Water and Romance) (Nickname. East Japan Railway Company)
*Motoyama Branch Line (Common name. West Japan Railway Company)
*Mt. Tsukuba Cable Car Line (Tsukuba Kanko Railway)
*Mugi Line (Shikoku Railway Company)
*Mukogawa Line (Hanshin Electric Railway)
*Muroran Main Line (Hokkaido Railway Company)
*Musashino Line (East Japan Railway Company)
*Myōken Cable (Common name. Nose Electric Railway)
*Myōken Line (Nose Electric Railway)

N

*Nagahori Tsurumi-Ryokuchi Line (Osaka Municipal Transportation Bureau)
*Nagano Line (Kintetsu Corporation)
*Nagano Line (Nagano Electric Railway)
*Nagano Shinkansen (Nickname. East Japan Railway Company)
*Nagao Line (Takamatsu-Kotohira Electric Railroad)
*Nagasaki Main Line (Kyushu Railway Company)
*Nagoya Line (Kintetsu Corporation)
*Nagoya Main Line (Nagoya Railroad)
*Nakamura Line (Tosa Kuroshio Railway)
*Nakanoshima Line (Keihan Electric Railway) "Under construction"
*Namba Line (Kintetsu Corporation)
*Namboku Line (Kobe Rapid Railway (services) )
*Namboku Line (Sapporo City Transportation Bureau)
*Namboku Line (Sendai City Transportation Bureau)
*Namboku Line (Tokyo Metro)
*Nambu Line (East Japan Railway Company)
*Nambu Branch Line (Common name. East Japan Railway Company)
*Nan Line (South Line) (Freight. Akita Rinkai Railway)
*Nanakuma Line (Fukuoka City Transportation Bureau)
*Nanao Line (Noto Railway)
*Nanao Line (West Japan Railway Company)
*Naniwasuji Line (Operator undecided) "Planned"
*Nankai Main Line (Nankai Electric Railway)
*Nankō Line (Freight. Nagoya Rinkai Railway)
*Nankō Port Town Line (Osaka Municipal Transportation Bureau)
*Nankō-Minato-Ku Link Line (New Tram Technoport Line) (Osaka Municipal Transportation Bureau)
*Nankō-Minato-Ku Link Line (Technoport Line) (Osaka Municipal Transportation Bureau)
*Nara Line (Kintetsu Corporation)
*Nara Line (West Japan Railway Company)
*Narita Line (East Japan Railway Company)
*Narita New Rapid Railway Line (Keisei Electric Railway (services), Narita Rapid Rail Access (tracks) ) "Under construction"
*Naruto Line (Shikoku Railway Company)
*Negishi Line (East Japan Railway Company)
*Nemuro Main Line (Hokkaido Railway Company)
*New Shuttle (Nickname. Saitama New Urban Transit)
*Nichinan Line (Kyushu Railway Company)
*Nihonkai Jūkan Line (Group name. Composed of JR lines running on the Sea of Japan coast. East Japan Railway Company, West Japan Railway Company)
*Nikkō Line (East Japan Railway Company)
*Nikkō Line (Tobu Railway)
*Nippō Main Line (Kyushu Railway Company)
*Nippori-Toneri Liner (Tokyo Metropolitan Subway Construction Company (constructor), operator undecided.) "Under construction"
*Nishi-Futō Line (Freight. Mizushima Rinkai Railway)
*Nishihino Line (Common name. Kintetsu Corporation)
*Nishikajima Line (Common name. Enshu Railway)
*Nishikigawa Seiryū Line (Nishikigawa Railway)
*Nishi-Kyūshū Line (Matsuura Railway)
*Nishi-Nagoyakō Line (Nagoya Seaside Rapid Railway)
*Nishio Line (Nagoya Railroad)
*Nishi-Ōsaka Line (Hanshin Electric Railway)
*Nishi-Shigi Cable Line (Kintetsu Corporation)
*Nissei Line (Nose Electric Railway)
*Noda Line (Tobu Railway)
*North Line (Translation. Freight. Akita Rinkai Railway)

O

*Ōarai Kashima Line (Kashima Rinkai Railway)
*Obama Line (West Japan Railway Company)
*Odawara Line (Odakyu Electric Railway)
*Ōedo Line (Tokyo Metropolitan Bureau of Transportation)
*Ōfunato Line (East Japan Railway Company)
*Oga Line (East Japan Railway Company)
*Oga Namahage Line (Nickname. East Japan Railway Company)
*Ogose Line (Tōbu Railway)
*Ōigawa Main Line (Oigawa Railway)
*Ōimachi Line (Tokyo Kyuko Electric Railway)
*Ōito Line (East Japan Railway Company, West Japan Railway Company)
*Ōkawa Branch Line (Common name. East Japan Railway Company)
*Okinawa Urban Monorail Line (Okinawa Urban Monorail)
*Oku-no-Hosomichi Mogamigawa Line (Nickname. East Japan Railway Company)
*Oku-no-Hosomichi Yukemuri Line (Nickname. East Japan Railway Company)
*Ōminato Line (East Japan Railway Company)
*Ōmiya Line (Common name. Tobu Railway)
*Ōmori Line (Hakodate City Transportation Bureau)
*Ōmura Line (Kyushu Railway Company)
*Onoda Line (West Japan Railway Company)
*Ōsaka Line (Kintetsu Corporation)
*Ōsaka Higashi Line (West Japan Railway Company) "Under construction"
*Ōsaka Loop Line (West Japan Railway Company)
*Ōsaka Monorail Line (Osaka Rapid Railway)
*Oshiage Line (Keisei Electric Railway)
*Ōta Line (Common name. Tobu Railway)
*Ōtemachi Line (Iyo Railway)
*Ōtō Line (Keihan Electric Railway)
*Otokoyama Cable (Common name. Keihan Electric Railway)
*Ōtsu Line (Group name. Composed of Keishin Line and Ishiyama Sakamoto Line. Keihan Electric Railway)
*Ōtsuki Line (Fuji Kyuko)
*Ōu Main Line (East Japan Railway Company)
*Oume Line (East Japan Railway Company)
*Ōura Branch Line (Nagasaki Electric Tramway)
*Ōwani Line (Konan Railway)
*Ōyama Cable Line (Oyama Kanko Electric Railway)

P

*Peach Liner (Nickname. Tokadai New Transit) "Closed"
*Phase 1 Line (Translation. Kagoshima City Transportation Bureau)
*Phase 2 Line (Translation. Kagoshima City Transportation Bureau)
*Port Island Line (Kobe New Transit)