The Keisei 3000 series (京成3000形) is a DC electric multiple unit (EMU) train type operated by the private railway operator Keisei Electric Railway on commuter services in the Tokyo area of Japan since 2003. A total of 19 eight-car sets and 29 six-car sets have been built by J-TREC (formerly Tokyu Car Corporation) and Nippon Sharyo between 2002 and 2019.