Kozakai Station (小坂井駅, Kozakai-eki) is a railway station in the city of Toyokawa, Aichi Prefecture, Japan, operated by Central Japan Railway Company (JR Tōkai).

The station has two opposed side platforms connected by a footbridge.

On August 1, 1943, the Toyokawa Railway was nationalized along with some other local lines to form the Japanese Government Railways (JGR) Iida Line.

Along with its division and privatization of JNR on April 1, 1987, the station came under the control and operation of the Central Japan Railway Company (JR Tōkai).

[4] Media related to Kozakai Station at Wikimedia Commons