The 201 series (201系, 201-kei) is a DC electric multiple unit (EMU) commuter train type introduced in 1979 by Japanese National Railways (JNR).

A 4-car 201 series set (W1) was modified in 2001 by JR East to become the special Shikisai (四季彩) tourist train, entering service on the Ōme Line from 4 August 2001.

[5] The train was withdrawn from regular service at the end of June 2009, with a number of special finale runs scheduled for July.

[6] On the evening of 12 October 1997, A 6-car Chuo Line 201 series trainset collided with a 12-car Super Azusa E351 series train which was passing through the Otsuki Station with a 2-minute delay at a running speed of 105 km/h (65 mph), while on the right side which is a damaged 201 series trainset which collided at a speed of 25 km/h (16 mph), the Super Azusa train derailed which has been led to decoupling of 4 cars (Car No.

[8] After this incident, the management of JR East decided to abolish the shunting work that is required the existing ATS to be turned off, and they completely repaired the damanged trainset to let them back from service.