The Keisei 3500 series (京成3500形) is a commuter electric multiple unit (EMU) train type operated by the private railway operator Keisei Electric Railway in the Tokyo area of Japan since 1972.

[3] The 3500 series sets operate on the Keisei Main Line.

[2] Refurbishment involved redesigned front ends with square lights instead of round and upgraded interiors.

[6] Special farewell tours were staged for the last remaining unrefurbished 3500 series set, 3588, on 25 and 26 February 2017.

[8] The set initially operated in the standard Keisei livery after the transfer, but it was repainted with green and red stripes in April 2022.