is a passenger railway station located in the city of Iyo, Ehime Prefecture, Japan. It is operated by JR Shikoku and has the station number "U08".
The station is served by the JR Shikoku Uchiko-branch of the Yosan Line and is located 218.7 km from the beginning of the line at . Eastbound local trains which serve the station terminate at . Connections with other services are needed to travel further east of Matsuyama on the line.
Some Uwakai limited express trains, which run between and , stop at this station.
The station consists of two opposed side platforms serving two tracks. A station building serves as a waiting room. Access to the opposite platform is by means of a footbridge. The station is unstaffed but a kan'i itaku agent located outside the station sells some types of tickets.
Iyo-Nakayama Station was opened by Japanese National Railways (JNR) on 3 March 1986. It was among a string of three intermediate stations which were set up during the construction of a new stretch of track to link with the Uchiko Line at , to create what would later become the Uchiko branch of the Yosan Line. With the privatization of JNR on 1 April 1987, control of the station passed to JR Shikoku.