Mimasaka-Ōsaki Station (美作大崎駅, Mimasaka-Ōsaki-eki) is a passenger railway station located in the city of Tsuyama, Okayama Prefecture, Japan, operated by West Japan Railway Company (JR West).

[1] Mimasaka-Ōsaki Station is served by the Kishin Line, and is located 79.3 kilometers from the southern terminus of the line at Himeji.

The station consists of one ground-level side platform serving a single bi-directional track.

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

In fiscal 2019, the station was used by an average of 22 passengers daily..[2] Media related to Mimasaka-Ōsaki Station at Wikimedia Commons This Okayama Prefecture railroad station-related article is a stub.