The GV-E400 series (GV-E400系) is a diesel-electric multiple unit (DEMU) train type operated by East Japan Railway Company (JR East) in the Niigata and Akita areas of Japan from 2019.

[2] The GV-E400 series trains are the first diesel-electric multiple units (not including hybrid train) to be operated by JR East, with diesel engines driving generators, which in turn power electric traction motors.

[3] The trains have stainless steel bodies and a maximum speed of 100 km/h (62 mph).

[3] Details of the new trains were announced by JR East on 4 July 2017.

[2] One single-car unit and one two-car unit were delivered from the Kawasaki Heavy Industries factory in Kobe in January 2018 for test-running and evaluation.