The Keikyu 2000 series (京急2000形) was an electric multiple unit (EMU) train type operated by the private railway operator Keikyu on commuter services in the Tokyo area of Japan from 1982 until 2018.

Originally introduced to replace the earlier 600 series sets on limited-stop Limited Express (快特, Kaitoku) services, they were rebuilt with an additional pair of doors per side and longitudinal seating from 1998 for reassignment to regular commuter services.

[2] When delivered, the sets were initially painted in vermillion red with white around the side windows.

From 1998, when converted to regular commuter use, they were repainted into all-over vermillion red with a white bodyside stripe.

[1] From January 2013, set 2011 was repainted into the original livery of vermillion with white window surrounds to mark the 30th anniversary of the 2000 series.