Nishi-Ōsaki Station (西大崎駅, Nishi-Ōsaki-eki) is a railway station on the Rikuu East Line in the city of Ōsaki, Miyagi Prefecture, Japan, operated by East Japan Railway Company (JR East).

Nishi-Ōsaki Station is served by the Rikuu East Line, and is located 21.9 rail kilometers from the terminus of the line at Kogota Station.

Nishi-Ōsaki Station has one side platform, serving a single bi-directional track. There is no station building. The station is unattended.

Nishi-Ōsaki Station opened on 20 April 1960 as Kami-Iwadeyama Station (上岩出山駅, Kami-Iwadeyama eki). The station was absorbed into the JR East network upon the privatization of JNR on 1 April 1987. The station was renamed to its present name on 22 March 1997.

• Japan National Route 47

• List of Railway Stations in Japan

Media related to Nishi-Ōsaki Station at Wikimedia Commons

• Official website (in Japanese)