The Chichibu Railway 2000 series (秩父鉄道2000系) was an electric multiple unit (EMU) train type for local services operated by the private railway operator Chichibu Railway in Japan.

[1] Four 4-car trains were converted in 1991 from former Tokyu 7000 series commuter EMUs.

[1] The trains were not air-conditioned.

[2] Trainsets were formed as follows.

[2] The 2100 and 2300 cars each had one lozenge-type pantograph.