Tosa-Shōwa Station (土佐昭和駅, Tosa-Shōwa-eki) is a passenger railway station located in the town of Shimanto, Takaoka District, Kōchi, Japan. It is operated by Shikoku Railway Company (JR Shikoku). It has the station number "G31".

The station is served by JR Shikoku's Yodo Line, and is 26.5 kilometers from the starting point of the line at Wakai Station.

Tosa-Shōwa Station consists of a side platform serving a single track which is mounted on an embankment above the level of the town. From the access road, a tunnel goes through the embankment and emerges at a concrete ramp which leads to a flight of steps connecting to the platform on the opposite side of the track. A shelter is provided on the platform for waiting passengers. At the base of the embankment next to the entrance tunnel, a bike shed and limited parking is provided. An unstaffed tourist information centre nearby also serves as a waiting room. The station is not wheelchair accessible.

The station opened on 1 March 1974 under the control of Japanese National Railways. After the privatization of JNR on 1 April 1987, control of the station passed to JR Shikoku.

• Shimanto Municipal Showa Junior High School
• Shimanto Town Showa Elementary School
• Japan National Route 381
• Shimanto River

• List of railway stations in Japan

• Station timetable

Media related to Tosa-Shōwa Station at Wikimedia Commons