The Odakyu 5000 series (小田急5000形, Odakyū 5000-gata) was a commuter electric multiple unit (EMU) train type operated by the private railway operator Odakyu Electric Railway in Japan from November 1969 until March 2012.

The 5000 series was introduced from 1969, with a total of 15 sets (60 vehicles) built.

These were augmented from 1978 by 20 6-car sets (120 vehicles), classified as 5200 series.

Traction motors as well as control device were built by Mitsubishi Electric.

4+6-car formations were gradually replaced by new 4000 series sets, and the 6-car sets were withdrawn following the last day of operations on 30 January 2011.