The Tobu 2000 series (東武2000系, Tōbu 2000-kei) was a DC electric multiple unit (EMU) commuter train type operated by the private railway operator Tobu Railway in Japan between 1961 and 1993.

Ten four-car sets were introduced from 1961 on inter-running services between the Tobu Isesaki Line and Tokyo Metro Hibiya Line.

[1] These were lengthened to six cars per set in 1964 to cope with increased ridership, and ten more six-car sets were delivered between May 1966 and September 1970.

[1] Two six-car sets were rebuilt from 2000 series cars in 1988 with new cab fronts for use on the Tobu Noda Line, and reclassified 2080 series.

[1] The "M" and "Mc" cars were each fitted with one lozenge-type pantograph.