|Service type||Limited express|
|First service||1 March 1965|
|Current operator(s)||JR West|
Wakayama, Kainan, Kii-Tanabe, Shirahama, Shingū
|Distance travelled||315.5 km (196.0 mi) (Kyoto – Shingū)|
|Average journey time||4 hours 15 minutes approx (Shin-Ōsaka – Shingū)|
|Service frequency||16 return workings daily|
|Line(s) used||Tokaido Main Line (JR Kyoto Line), Osaka Loop Line, Hanwa Line, Kisei Line (Kinokuni Line)|
|Class(es)||Standard + Green|
|Other facilities||Toilets, Woman-only seats|
|Rolling stock||283 series, 287 series, 289 series|
|Track gauge||1,067 mm (3 ft 6 in)|
|Electrification||1,500 V DC|
|Operating speed||130 km/h (81 mph)|
|Track owner(s)||JR West|
The Kuroshio (くろしお) is a limited express train service in Japan connecting Kyoto, Shin-Osaka, Tennōji, Wakayama, Kii-Tanabe, Shirahama, and Shingu via the Tokaido Main Line (JR Kyoto Line), Osaka Loop Line, Hanwa Line, and Kisei Line (Kinokuni Line), operated by West Japan Railway Company (JR West). This article covers the derivative limited express trains, "Super Kuroshio (スーパーくろしお)" and "Ocean Arrow (オーシャンアロー)", the names of which were discontinued from start of the revised timetable on 17 March 2012.
Stations in parentheses are not served by all trains.
Trains stop at the following stations:
Kyoto – Shin-Osaka – (Nishikujo) – Tennoji – (Izumi-Fuchu) – (Hineno) – (Izumi-Sunagawa) – Wakayama – Kainan – (Minoshima) – (Fujinami) – (Yuasa) – Gobo – (Minabe) – Kii-Tanabe – Shirahama – Susami – Kushimoto – Koza – Taiji – Kii-Katsuura – Shingu
New 287 series EMUs were introduced on Kuroshio services from start of the revised timetable on 17 March 2012. From the same date, the Super Kuroshio and Ocean Arrow service names were discontinued, with services integrated with Kuroshio services.
New 289 series EMUs converted from former dual-voltage 683 series trainsets were introduced on Kuroshio services from 31 October 2015, replacing the last remaining JNR-era 381 series trains. The 289 series fleet consists of five six-car sets and three three-car sets (39 vehicles in total).