List of railway lines in Japan (R to Z)

R
Rowan Electric Railway (rotetsu) rowan valley line (JR Hokkaido)
 * Rakutenchi Cable (Common name. Okamoto MFG)
 * Rifu Line (Common name. East Japan Railway Company)
 * Rikuu-Sai Line (East Japan Railway Company)
 * Rikuu-Tō Line (East Japan Railway Company)
 * Rinkai Fukutoshin Line (Former name. Tokyo Waterfront Area Rapid Transit)
 * Rinkai Line (Tokyo Waterfront Area Rapid Transit)
 * Rinkai Main Line (Freight. Keiyo Rinkai Railway)
 * Rinkai Main Line (Freight. Sendai Rinkai Railway)
 * Rinkan Sun Line (Nickname. Nankai Electric Railway)
 * Rinkō Line (Freight. Taiheiyo Coal Services and Transportation)
 * Rokkō Cable Line (Rokko Maya Railway)
 * Rokkō Island Line (Kobe New Transit)
 * Rumoi Main Line (Hokkaido Railway Company)
 * Ryōmō Line (East Japan Railway Company)
 * Ryūgasaki Line (Kanto Railway)

S

 * Sagami Line (East Japan Railway Company)
 * Sagamihara Line (Keio Electric Railway)
 * Sagano Line (Nickname. West Japan Railway Company)
 * Sagano Scenic Line (Sagano Scenic Railway)
 * Saikyō Line (Nickname. East Japan Railway Company)
 * Sai-no-Kuni Stadium Line (Nickname. Saitama Railway)
 * Saitama Rapid Railway Line (Saitama Railway)
 * Saito Line (Nickname. Osaka Rapid Railway)
 * Saitozaki Line (Common name. Kyushu Railway Company)
 * Sakai Line (West Japan Railway Company)
 * Sakaisuji Line (Osaka Municipal Transportation Bureau)
 * Sakamoto Cable (Common name. Hieizan Railway)
 * Sakuradōri Line (Common name. Transportation Bureau City of Nagoya)
 * Sakurai Line (West Japan Railway Company)
 * Sakurajima Line (West Japan Railway Company)
 * Sakuramachi Branch Line (Nagasaki Electric Tramway)
 * Sambashi Line (Tosaden Kōtsū)
 * Sanda Line (Kobe Electric Railway)
 * Samatsu Line (Common name. East Japan Railway Company)
 * Sangi Line (Sangi Railway)
 * Sangū Line (Central Japan Railway Company)
 * San'in Main Line (West Japan Railway Company)
 * Sankō Line (West Japan Railway Company)
 * Sano Line (Tobu Railway)
 * San'yō Main Line (West Japan Railway Company, Kyushu Railway Company)
 * San'yō Shinkansen (West Japan Railway Company)
 * Sasaguri Line (Kyushu Railway Company)
 * Sasebo Line (Kyushu Railway Company)
 * Sassho Line (Hokkaido Railway Company)
 * Sawara Line (Common name. Hokkaido Railway Company)
 * Sayama Line (Seibu Railway)
 * Seaside Line (Nickname. Yokohama New Transit)
 * Seibu Chichibu Line (Seibu Railway)
 * Seibu Yūrakuchō Line (Seibu Railway)
 * Seibuen Line (Seibu Railway)
 * Seikan Tunnel Tappi Shakō Line (Seikan Tunnel Museum)
 * Seikibashi Line (Okayama Electric Tramway)
 * Seishin Extended Line (Kobe Municipal Transportation Bureau)
 * Seishin Line (Kobe Municipal Transportation Bureau)
 * Seishin-Yamate Line (Group name. Comprising the Seishin Line, Seishin Extended Line and Yamate Line. Kobe Municipal Transportation Bureau)
 * Sekihoku Main Line (Hokkaido Railway Company)
 * Sekishō Line (Hokkaido Railway Company)
 * Semboku Rapid Railway Line (Semboku Rapid Railway Co., Ltd.)
 * Semmō Main Line (Hokkaido Railway Company)
 * Sendai Airport Access Line (Nickname. East Japan Railway Company. Sendai Airport Transit)
 * Sendai Airport Line (Translation. Sendai Airport Transit)
 * Sendai Futō Line (Freight. Sendai Rinkai Railway)
 * Sendai Kūkō Line (Sendai Airport Transit)
 * Sendai Nishikō Line (Freight. Sendai Rinkai Railway)
 * Sennichimae Line (Osaka Municipal Transportation Bureau)
 * Senri Line (Hankyu Corporation)
 * Senseki Line (East Japan Railway Company)
 * Senzaki Branch Line (Common name. West Japan Railway Company)
 * Senzan Line (East Japan Railway Company)
 * Setagaya Line (Tokyo Kyuko Electric Railway)
 * Seto Line (Nagoya Railroad)
 * Seto-Ōhashi Line (Nickname. West Japan Railway Company, Shikoku Railway Company)
 * Setouchi Sazanami Line (Nickname. West Japan Railway Company)
 * Shibayama Railway Line (Shibayama Railway)
 * Shido Line (Takamatsu-Kotohira Electric Railroad)
 * Shigaraki Line (Shigaraki Kōgen Railway)
 * Shigi Line (Kintetsu Railway)
 * Shima Line (Kintetsu Railway)
 * Shimabara Railway Line (Shimabara Railway)
 * Shimanto Green Line (Nickname. Shikoku Railway Company)
 * Shimminato Line (Freight. Japan Freight Railway Company)
 * Shimminatokō Line (Man'yo Line)
 * Shinano Railway Line (Shinano Railway)
 * Shin'etsu Main Line (East Japan Railway Company)
 * Shinjuku Line (Seibu Railway)
 * Shinjuku Line (Tokyo Metropolitan Bureau of Transportation)
 * Shinonoi Line (East Japan Railway Company)
 * Shiomibashi Line (Common name. Nankai Electric Railway)
 * Shiomichō Line (Freight. Nagoya Rinkai Railway)
 * Shizuoka Shimizu Line (Shizuoka Railway)
 * Shōnan Monorail (Common name. Shonan Monorail)
 * Shōnan-Shinjuku Line (Nickname. East Japan Railway Company)
 * Shōwamachi Line (Freight. Nagoya Rinkai Railway)
 * Skyrail Midorizaka Line (Nickname. Skyrail Service)
 * Sōbu Line (Rapid) (Common name. East Japan Railway Company)
 * Sōbu Main Line (East Japan Railway Company)
 * Sōbu Nagareyama Line (Sobu Nagareyama Electric Railway)
 * Sōtetsu Main Line (Sagami Railway)
 * Sotobō Line (East Japan Railway Company)
 * South Line (Translation. Freight. Akita Rinkai Railway)
 * Sōya Main Line (Hokkaido Railway Company)
 * Suigun Line (East Japan Railway Company)
 * Suikū Line (Nickname. East Japan Railway Company)
 * Suizenji Line (Kumamoto City Transportation Bureau)
 * Sukumo Line (Tosa Kuroshio Railway)
 * Sunzu Line (Izuhakone Railway)
 * Suzuka Line (Kintetsu Railway)

T

 * Tadami Line (East Japan Railway Company)
 * Taga Line (Ohmi Railway)
 * Tagawa Line (Heisei Chikuho Railway)
 * Taiheiyō Coal Services and Transportation Rinkō Line (Taiheiyō Coal Services and Transportation)
 * Taisha Line (Ichibata Electric Railway)
 * Taita Line (Central Japan Railway Company)
 * Takahama Line (Iyo Railway)
 * Takamori Line (Minamiaso Railway)
 * Takao Line (Keio Electric Railway)
 * Takao Tozan Cable (Common name. Takao Tozan Electric Railway)
 * Takaoka Tramway Line (Man'yo Line)
 * JR Takarazuka Line (Nickname. West Japan Railway Company)
 * Takarazuka Main Line (Hankyu Corporation)
 * Takasaki Line (East Japan Railway Company)
 * Takashinohama Line (Nankai Electric Railway)
 * Takayama Main Line (Central Japan Railway Company, West Japan Railway Company)
 * Takehana Line (Nagoya Railroad)
 * Taketoyo Line (Central Japan Railway Company)
 * Tama Line (Odakyu Electric Railway)
 * Tamanoi Line (Common name. Nagoya Railroad)
 * Tama Urban Monorail Line (Tama Urban Monorail)
 * Tamagawa Line (Seibu Railway)
 * Tōkyū Tamagawa Line (Tokyo Kyuko Electric Railway)
 * Tamako Line (Seibu Railway)
 * Tanagawa Line (Nankai Electric Railway)
 * Tanimachi Line (Osaka Municipal Transportation Bureau)
 * Taniyama Line (Kagoshima City Transportation Bureau)
 * Tarumi Line (Tarumi Railway)
 * Tasaki Line (Kumamoto City Transportation Bureau)
 * Tateyama Cable Car (Common name. Tateyama Kurobe Kanko)
 * Tateyama Line (Toyama Chiho Railway)
 * Tateyama Tunnel Trolleybus (Common name. Tateyama Kurobe Kanko)
 * Tatsuno Branch Line (Common name. East Japan Railway Company)
 * Tawaramoto Line (Kintetsu Railway)
 * Tazawako Line (East Japan Railway Company)
 * Tenjin Ōmuta Line (Nishi-Nippon Railroad)
 * Tenri Line (Kintetsu Railway)
 * Tenryū Hamanako Line (Tenryu Hamanako Railroad)
 * Toba Line (Kintetsu Railway)
 * Tōbu Kyūryō Line (Aichi Rapid Transit)
 * Tōchiku Line (Freight. Nagoya Rinkai Railway)
 * Tōgane Line (East Japan Railway Company)
 * Tōhō Line (Sapporo City Transportation Bureau)
 * Tōhoku Main Line (East Japan Railway Company)
 * Tōhoku Shinkansen (East Japan Railway Company)
 * Tōjō Line (Tobu Railway)
 * Tōkadai Line (Tokadai New Transit) Closed
 * Tōkaidō Main Line (East Japan Railway Company, Central Japan Railway Company, West Japan Railway Company)
 * Tōkaidō Shinkansen (Central Japan Railway Company)
 * Tōkō Line (Freight. Nagoya Rinkai Railway)
 * Tokoname Line (Nagoya Railroad)
 * Tokushima Line (Shikoku Railway Company)
 * Tōkyō Monorail Haneda Line (Tokyo Monorail)
 * Tōkyō Waterfront New Transit Waterfront Line (Yurikamome)
 * Tōkyū Tamagawa Line (Tokyo Kyuko Electric Railway)
 * Toshima Line (Seibu Railway)
 * Tōsō Line (Kagoshima City Transportation Bureau)
 * Towada Hachimantai Shikisai Line (Nickname. East Japan Railway Company)
 * Towada Kankō Electric Railway Line (Towada Kanko Electric Railway)
 * Toyama City Tram Line (Group name. Comprising the tramway lines in Toyama city. Toyama Chiho Railway)
 * Toyama Light Rail Line (Toyama Light Rail)
 * Toyamakō Line (Toyama Light Rail)
 * Tōyō Rapid Line (Toyo Rapid Railway)
 * Toyokawa Line (Nagoya Railroad)
 * Tōyoko Line (Tokyo Kyuko Electric Railway)
 * Toyota Line (Nagoya Railroad)
 * Tōzai Line (Kobe Rapid Railway (services) )
 * Tōzai Line (Kyoto Municipal Transportation Bureau)
 * Tōzai Line (Sapporo City Transportation Bureau)
 * Tōzai Line (Sendai City Transportation Bureau) Under construction
 * Tōzai Line (Tokyo Metro)
 * JR Tōzai Line (West Japan Railway Company)
 * Trolleybus Line (Tateyama Kurobe Kanko)
 * Trunk Line (Kumamoto City Transportation Bureau)
 * Tsugaru-Kaikyō Line (Nickname. East Japan Railway Company, Hokkaido Railway Company)
 * Tsugaru Line (East Japan Railway Company)
 * Tsugaru Railway Line (Tsugaru Railway)
 * Tsukuba Express Line (Metropolitan Intercity Railway Company)
 * Tsurumai Line (Common name. Transportation Bureau City of Nagoya)
 * Tsurumi Line (East Japan Railway Company)
 * Tsushima Line (Nagoya Railroad)
 * Tsuyama Line (West Japan Railway Company)

U

 * Ube Line (West Japan Railway Company)
 * Uchibō Line (East Japan Railway Company)
 * Uchiko Line (Shikoku Railway Company)
 * Uemachi Line (Hankai Electric Tramway)
 * Ueno Monorail (Tokyo Metropolitan Bureau of Transportation)
 * Uetsu Main Line (East Japan Railway Company)
 * Uji Line (Keihan Electric Railway)
 * Ujina Line (Hiroshima Electric Railway)
 * Ukishima Line (Freight. Kanagawa Rinkai Railway)
 * Umeda Freight Line (Common name. West Japan Railway Company)
 * Umi Line (Common name. Kyushu Railway Company)
 * Umineko Rail Hachinohe City Line (Nickname. East Japan Railway Company)
 * Umi-no-Nakamichi Line (Nickname. Kyushu Railway Company)
 * Umi-Shibaura Branch Line (Common name. East Japan Railway Company)
 * Uno Line (West Japan Railway Company)
 * Utsube Line (Kintetsu Railway)
 * Utsunomiya Line (Tobu Railway)
 * Utsunomiya Line (Nickname. East Japan Railway Company)
 * Utsunomiya Light Rail

W

 * Wadamisaki Line (Common name. West Japan Railway Company)
 * Wajima Line (Common name. Noto Railway)
 * Wakamatsu Line (Nickname. Kyushu Railway Company)
 * Wakasa Line (Wakasa Railway)
 * Wakayama Line (West Japan Railway Company)
 * Wakayamakō Line (Nankai Electric Railway)
 * Watarase Keikoku Line (Watarase Keikoku Railway)

Y

 * Yahiko Line (East Japan Railway Company)
 * Yakuri Cable (Common name. Shikoku Cable)
 * Yamada Line (East Japan Railway Company)
 * Yamada Line (Kintetsu Railway)
 * Yamagata Line (Nickname. East Japan Railway Company)
 * Yamagata Shinkansen (Nickname. East Japan Railway Company)
 * Yamaguchi Line (Seibu Railway)
 * Yamaguchi Line (West Japan Railway Company)
 * Yamanote Line (East Japan Railway Company)
 * Yamate Line (Kobe Municipal Transportation Bureau)
 * Yamatoji Line (Nickname. West Japan Railway Company)
 * Yashiro Line (Nagano Electric Railway)
 * Yasunoya Line (Toyama Chiho Railway)
 * Yatsugatake Kōgen Line (Nickname. East Japan Railway Company)
 * Yodo Line (Shikoku Railway Company)
 * Yōkaichi Line (Ohmi Railway)
 * Yokogawa Line (Hiroshima Electric Railway)
 * Yokogawara Line (Iyo Railway)
 * Yokohama Line (East Japan Railway Company)
 * Yokosuka Line (East Japan Railway Company)
 * Yonesaka Line (East Japan Railway Company)
 * Yōrō Line (Yōrō Railway)
 * Yosan Line (Shikoku Railway Company)
 * Yoshino Line (Kintetsu Railway)
 * Yoshinogawa Blue Line (Nickname. Shikoku Railway Company)
 * Yotsubashi Line (Osaka Municipal Transportation Bureau)
 * Yufu Kōgen Line (Nickname. Kyushu Railway Company)
 * Yui-Rail (Nickname. Okinawa Urban Monorail)
 * Yūkarigaoka Line (Yamaman)
 * Yumekamome (Nickname. Kobe Municipal Transportation Bureau)
 * JR Yumesaki Line (Nickname. West Japan Railway Company)
 * Yunokawa Line (Hakodate City Transportation Bureau)
 * Yunomae Line (Kumagawa Railroad)
 * Yunoyama Line (Kintetsu Railway)
 * Seibu Yūrakuchō Line (Seibu Railway)
 * Yūrakuchō Line (Tokyo Metro)
 * Yūrakuchō New Line (Tokyo Metro)
 * Yurikamome (Nickname. Yurikamome)
 * Yutorīto Line (Nickname. Nagoya Guideway Bus)

Z

 * Keikyu Zushi Line (Keihin Electric Express Railway)