is a passenger railway station located in the city of Hatsukaichi, Hiroshima Prefecture, Japan. It is operated by the West Japan Railway Company (JR West).
Ajina Station is served by the JR West Sanyà  Main Line, and is located 324.8 kilometers from the terminus of the line at .
The station consists of two opposed side platforms connected by an elevated station building. The station is staffed.
Ajina Station was opened on 11 August 1989.
In fiscal 2019, the station was used by an average of 2250 passengers daily.