The Tokyu 5000 series is an electric multiple unit (EMU) train type operated by the private railway operator Tokyu Corporation since 2002 on many of its commuter lines in the Tokyo area of Japan.

The Tokyu Corporation a contraction of and formerly Tōkyō Kyūkō Dentetsu kabushiki gaisha until 2 September 2019, is a Japanese keiretsu or conglomerate headquartered in Shibuya, Tokyo. While a multinational corporation, its main operation is the Tokyu Railways Company, Ltd. , a wholly-owned subsidiary operating railways in the Greater Tokyo Area.