Nishiarai Station (西新井駅, Nishiarai-eki) is a railway station in Adachi, Tokyo, Japan.

The station is served by the Tobu Skytree Line and Tobu Daishi Line.

The station consists of three island platforms serving six tracks.

The station opened on 27 August 1899.

[2] From 17 March 2012, station numbering was introduced on all Tobu lines, with Nishiarai Station becoming "TS-13".