Aizu-Kawaguchi Station (会津川口駅, Aizu-Kawaguchi-eki) is a railway station on the Tadami Line in the town of Kaneyama, Ōnuma District, Fukushima Prefecture, Japan, operated by East Japan Railway Company (JR East).

Aizu-Kawaguchi Station opened on September 20, 1956, as the terminus of an extension of the eastern section of the Tadami Line from the previous terminus at Aizu-Miyashita.

[1] The station was absorbed into the JR East network upon the privatization of the Japanese National Railways (JNR) on April 1, 1987.

Due to damage caused by torrential rainfall on July 30, 2011, services between Aizu-Kawaguchi and Tadami stations were replaced by a provisional bus service.

The closed section resumed operations on 1 October 2022.