The Tanigawa (たにがわ) is a high-speed train service operated by the East Japan Railway Company (JR East) on the Jōetsu Shinkansen in Japan.

[1] The name Tanigawa (written as "谷川") was first introduced on 15 November 1982 for limited express services operating between Ueno in Tokyo and Minakami on the Jōetsu Line.

[4] From 1 October 1997, the name (written as "たにがわ") was used for the all-stations services between Tokyo and Echigo-Yuzawa on the Jōetsu Shinkansen, replacing the previous Toki all-stations services.

[1] E2 series 10-car sets were introduced on three return Tanigawa services daily from 26 January 2013, operating at a maximum speed of 240 km/h (150 mph).

[2][5] E2 series sets were removed from Tanigawa services (as well as the faster Toki services on the Joetsu Shinkansen) on the 18 March 2023 timetable revision as the line underwent an operating speed increase from 240 to 275 km/h (149 to 171 mph).