The Tokyu 8090 series (東急8090系, Tōkyū 8090-kei) and the related Tokyu 8590 series (東急8590系, Tōkyū 8590-kei) were commuter electric multiple unit (EMU) train types that were operated by the private railway operator Tokyu Corporation in the Kanto region of Japan from 1980 until 2019.