2100 series
# 2100 series

2100 series may refer to the following Japanese train types:

* Chikuho Electric Railroad 2100 series electric multiple unit operated on the Chikuhō Electric Railroad Line
* Ichibata Electric Railway 2100 series EMU
* Izukyū Corporation 2100 series EMU
* Iyotetsu 2100 series streetcar
* Kanto Railway KiHa 2100 series DMU
* Keikyu 2100 series EMU, introduced in 1998
* Keisei 2100 series EMU; see 209 series § 209-2000/2100 series
* Nagano Electric Railway 2100 series EMU, introduced in 2011
* Odakyu 2100 series EMU, see Odakyu 2000 series
