This is a list of railway electrification systems in Japan.

All lines use an overhead line power supply unless otherwise noted. , the rail system consists of the following:CIA – The World Factbook – Japan

of narrow gauge, of which is electrified. of , all of which is electrified. of Scotch gauge, all of which is electrified. of narrow gauge, all of which is electrified.

Electrification systems used by the Japan Railways Group, Japan's formerly state-owned operators, are 1,500 V DC and 20 kV AC for conventional lines and mini-Shinkansen, and 25 kV AC for Shinkansen. Electrification at 600 V DC and 750 V DC are also seen in private lines and non-rail based transit systems.

The frequency of the AC power supply is 50 Hz in Eastern Japan and 60 Hz in Western Japan.

DC electrified

200 V NameOperatorGauge Notes Ikoma Cable LineKintetsu Railway1,067 mm Cable railwayNishi-Shigi Cable Line

440 V NameOperatorGaugeNotes Skyrail Midorizaka LineSky Rail ServiceSuspended monorail Closed April 30, 2024

600 V

1,067 mm gauge

NameOperatorNotesChōshi Electric Railway LineChōshi Electric RailwayKatsuyama Eiheiji LineEchizen RailwayMikuni Awara LineEnoshima Electric Railway LineEnoshima Electric RailwayFukubu LineFukui RailwayIshikawa LineHokuriku RailroadHanazono LineIyotetsuHonmachi Line Jōhoku LineJōnan LineŌtemachi Line Takahama LineFujisaki LineKumamoto Electric RailwayKikuchi Line Shinminatokō LineManyosen Takaoka Kidō Line Higashiyama LineOkayama Electric TramwaySeikibashi Line Sapporo StreetcarSapporo Transportation Service Promotion Corporation Shizuoka–Shimizu LineShizuoka Railway Gomen LineTosaden Kōtsū Ino Line Sanbashi Line Toyama City Tram LineToyama Chihō Railway Toyamakō Line Azumada Main LineToyohashi Railroad

1,435 mm gauge

NameOperatorNotes Chikuhō Electric Railroad LineChikuho Electric RailroadEizan Main LineEizan Electric RailwayKurama Line Hankai LineHankai Tramway Uemachi Line Eba LineHiroshima Electric Railway Hakushima LineHijiyama Line Main Line Miyajima Line Ujina Line Yokogawa Line Kagoshima City TramKagoshima City Transportation Bureau Arashiyama LineKeifuku Electric RailroadKitano Line Kumamoto City TramKumamoto City Transportation BureauNagasaki Electric TramwayGinza LineTokyo MetroThird railMarunouchi LineNagoya Municipal Subway Higashiyama LineNagoya City Transportation BureauNagoya Municipal Subway Meijō LineNagoya Municipal Subway Meikō Line

Other gauges

NameOperatorGaugeNotesHakodate City TramHakodate City Tram Department1,372 mmMain LineKurobe Gorge Railway762 mmTateyama Tunnel TrolleybusTateyama Kurobe KankoTrolleybusUeno Zoo MonorailTokyo Metropolitan Bureau of TransportationSuspended monorailOverhead contactService suspended since 2019Toden Arakawa Line1,372 mmOnly surviving Tokyo Toden Setagaya LineTokyu Railways

750 V

NameOperatorGaugeNotes Enshū Railway LineEnshu Railway 1,067 mmHakone Tozan Line (Hakone-Yumoto – Gōra)Hakone Tozan Railway1,435 mm1,067 mm gauge section (Odawara – Hakone-Yumoto) uses 1,500 V, dead section within Hakone-Yumoto Astram LineHiroshima Rapid TransitPeople mover(1,700 mm-wide track) Third rail, Side contact Gunchū LineIyotetsu 1,067 mm Yokogawara Line Keihanna LineKintetsu Railway1,435 mm Third rail Namboku LineKita-Osaka Kyuko Railway Chūō LineOsaka Metro Midōsuji Line Sennichimae Line Tanimachi Line Yotsubashi Line Hokusei LineSangi Railway 762 mmWas operated by Kintetsu until 2003 Sapporo Municipal Subway Namboku LineSapporo City Transportation Bureau Rubber-tyred metro Third rail Yamaguchi LineSeibu Railway People mover Haneda Airport LineTokyo Monorail Straddle–beam monorail Side contactUtsunomiya Light Rail LineUtsunomiya Light Rail1,067 mm Yūkarigaoka LineYamaman People mover Under-floor contact Kintetsu Hachiōji LineYokkaichi Asunarou Railway 762 mmWas operated by Kintetsu until 2015 Utsube Line Yokohama Municipal Subway Blue LineYokohama City Transportation Bureau 1,435 mm Third rail Kanazawa Seaside LineYokohama Seaside Line People mover(1,700 mm-wide track)

1,500 V

1,067 mm gauge

NameOperatorNotes Agatsuma LineJR East Echigo Line Hachikō Line (Hachioji – Komagawa, Kita-Fujioka – Kuragano) Komagawa – Kita-Fujioka section is not electrified, for Kita-Fujioka – Kuragano section, only trains of Takasaki Line may use for switch-back, trains of Hachikō Line remain use DMU Hakushin LineItō LineItsukaichi LineJōban Line (Nippori – Toride)Dead section between Toride – Fujishiro, 20 kV, 50 Hz electrified north of the dead sectionJōetsu LineExcept Echigo-Yuzawa – Gala-Yuzawa (de facto Shinkansen section, 25 kV, 50 Hz electrified)Karasuyama Line (within Karasuyama Station, for charging purpose)While not de jure considered electrified line, all trains except reserved cruise trains are using battery EMUKashima LineKawagoe LineKeiyō LineMito Line (Near Oyama Station)Dead section between Oyama – Otabayashi, 20 kV, 50 Hz electrified east of the dead sectionMusashino LineNambu LineNarita LineNegishi LineNikkō LineŌito Line (Matsumoto – Minami-Otari)JR West section (Minami-Otari – Itoigawa) is not electrifiedŌme LineRyōmō LineSagami LineSaikyo LineSenseki LineExcept freight-only Rikuzen-Yamashita – Ishinomakikō and Senseki-Tōhoku Line connection (Matsushima – Takagimachi), where both are not electrifiedShin'etsu Main LineExcept freight-only Kami-Nuttari signal base – Higashi-Niigatakō (not electrified)Shinonoi LineSōbu Main LineExcept freight-only Shinkoiwa shingōjō – Etchūjima Kamotsu (not electrified)Sotobō LineTakasaki LineTōgane LineTōhoku Main Line (Tokyo – Kuroiso)Dead section between Kuroiso – Takaku, 20 kV, 50 Hz electrified north of the dead sectionTsurumi LineUchibō LineUetsu Main Line (Niitsu – Murakami)Dead section between Murakami – Majima, 20 kV, 50 Hz electrified northeast of the dead sectionYahiko LineYamanote LineYokohama LineYokosuka Line Chūō Main LineJR East, JR CentralTōkaidō Main LineJR East, JR Central, JR WestExcept freight-only Sannō signal base – Nagoya Minato Gotemba LineJR CentralIida LineMinobu LineTaketoyo LineExcept freight-only tracks near Ōbu StationKansai Main Line (Nagoya – Kameyama, Kamo – JR Namba)JR Central, JR WestKameyama – Kamo section is not electrified Akō LineJR West Bantan Line (Himeji – Teramae) Teramae – Wadayama section is not electrified Fukuchiyama Line Fukuen Line (Fukuyama – Fuchū) Fuchū – Shimo-Kawabe section was electrified during 1954–1962, then demolished, Shimo-Kawabe – Shiomachi section is never electrified Hakubi LineHanwa LineHokuriku Main Line (Maibara – Tsuruga)Dead section between Tsuruga – Minami-Imajō, 20 kV, 60 Hz electrified northeast of the dead sectionJR Tōzai LineKakogawa LineKansai Airport LineConcurrent with Nankai Airport Line within Sky Gate Bridge RKatamachi LineKisei Main Line (Wakayamashi – Shingū)JR Central section (Shingū – Kameyama) is not electrifiedKabe LineKosei LineKure LineKusatsu LineMaizuru LineNanao Line (Naka-tsubata – Wakuraonsen)Dead section between Tsubata – Naka-tsubata, 20 kV, 60 Hz electrified near Tsubata Station, partially concurrent with another same named line of Noto Railway (see below)Nara LineObama LineOnoda LineOsaka Higashi LineOsaka Loop LineSakai Line (Yonago – Gotō depot)Only for dead mileage purpose of San'in Main Line trains in Gotō depot, trains of Sakai Line are all using DMU, not de jure considered electrified line, the rest Sakai Line is not electrifiedSakurai LineSakurajima LineSan'in Main Line (Kyōoto – Kinosaki Onsen, Hōki-Daisen – Nishi-Izumo)Kinosaki Onsen – Hōki-Daisen, and Nishi-Izumo – Hatabu sections are not electrifiedUbe LineUno LineWakayama LineHonshi-Bisan LineJR West, JR ShikokuDosan Line (Tadotsu – Kotohira)JR ShikokuKotohira – Kubokawa section is not electrifiedYosan Line (Takamatsu – Iyoshi)Iyoshi – Uwajima section is not electrifiedSan'yō Main Line (Kōbe – Shimonoseki)JR West, JR KyushuDead section between Shimonoseki – Moji (at Kyushu gate of Kanmon Railway Tunnel), 20 kV, 60 Hz electrified within Moji Station (except a freight-only track, to which its dead section is located west of Moji Station) Chikuhi Line (Meinohama – Karatsu)JR Kyushu Karatsu – Imari section is not electrifiedKaratsu Line (Karatsu – Nishi-Karatsu)Kubota – Karatsu section is not electrifiedAichi Loop LineAichi Loop RailwayAizu Line (Aizu-Tajima – Aizukōgen-Ozeguchi)Aizu RailwayAs of 2022, all trains of Aizu Railway are DMUs, electrification is used by Tobu Railway trains, the rest Aizu Line is not electrifiedKamikōchi LineAlpico KōtsūChichibu Main LineChichibu RailwayMikajiri LineFreight lineMyōkō Haneuma LineEchigo Tokimeki Railwaywas a part of Shin'etsu Main Line until 2015Nihonkai Hisui Line (Kajiyashiki – Naoetsu)Dead section between Echigo Oshiage Hisui Kaigan – Kajiyashiki, 20 kV, 60 Hz electrified west of the dead section, was a part of Hokuriku Main Line until 2015Fujikyuko LineFuji KyukoFukuoka City Subway Hakozaki LineFukuoka City Transportation BureauFukuoka City Subway Airport LineIizaka LineFukushima TransportationGakunan Railway LineGakunan Electric TrainHakone Tozan Line (Odawara – Hakone-Yumoto)Hakone Tozan Railwayinclude dual gauge section (see below)