The Tokyu 9000 series (Japanese: 東急9000系, Hepburn: Tōkyū 9000-kei) is a Japanese commuter electric multiple unit (EMU) train type operated by the private railway operator Tokyu Corporation in the Tokyo area of Japan.

While they retain the stainless steel bodies used by older Tokyu train types, they have an offset front-end door.

In addition, the 9000 series was the first train type to use variable-frequency drive (more commonly referred to as VVVF) technology from new.

It was shortened to a five-car formation, and its solid-red front-end bands were replaced with ones with a red-to-orange gradient.

[11] The rest of the fleet was transferred and modified as such from then, with the last of these sets—9001, 9005, and 9010—being withdrawn from Toyoko Line operations between 14 and 15 March 2013.

A 9000 series set is due to receive a special livery to commemorate the 100th anniversary of Tokyu Corporation's founding.