[1] Yamaguchi Station is served by the JR West Yamaguchi Line, and is located 12.7 kilometers from the terminus of the line at Shin-Yamaguchi.

The limited express Super Oki and the rapid sightseeing train SL Yamaguchi steam train also stop here.

Yamaguchi Station was opened on 20 February 1913.

With the privatization of the Japan National Railway (JNR) on 1 April 1987, the station came under the aegis of the West Japan railway Company (JR West).

In fiscal 2020, the station was used by an average of 1457 passengers daily.