is a passenger railway station located in Higashi-ku in the city of Okayama, Okayama Prefecture, Japan. It is operated by the West Japan Railway Company (JR West).
Saidaiji Station is served by the JR Akà  Line, and is located 51.2 kilometers from the terminus of the line at and 47.0 kilometers from .
The station consists of one side platform and one island platform connected by a footbridge. The station is staffed..
Saidaiji Station was opened on 1 September 1962. With the privatization of Japanese National Railways (JNR) on 1 April 1987, the station came under the control of JR West.
In fiscal 2019, the station was used by an average of 3631 passengers daily