| Shinshimashima Station | |
| Native Name: | 新島々駅 |
| Native Name Lang: | ja |
| Address: | 3050-1 Hata-Akamatsu, Matsumoto-shi, Nagano-ken 390-1401 |
| Country: | Japan |
| Coordinates: | 36.1898°N 137.8218°W |
| Operator: | Alpico Kōtsū |
| Line: | Kamikōchi Line |
| Distance: | 14.4 km from |
| Platforms: | 1 island platform |
| Tracks: | 2 |
| Code: | AK-14 |
| Opened: | 26 September 1924 |
| Former: | Akamatsu (to 1966) |
| Passengers: | 271 |
| Pass Year: | FY2016 |
| Map Type: | Japan Nagano Prefecture#Japan |
is a railway station in Matsumoto, Nagano, Japan, operated by the private railway operating company Alpico Kōtsū.
Shinshimashima Station is the terminus of the Kamikōchi Line and is 14.4 kilometers from the opposing terminus of the line at Matsumoto Station.
The station has one dead-headed island platform serving two tracks. The platforms are not numbered
The station opened on 26 September 1924 as . It was renamed to its present name on 1 October 1966. Due to damaged caused by the 1983 Typhoon 10, the line pass Shinshimashima Station was discontinued and replaced by a bus service, making this station the effective terminus of the line. A new station building was completed in 2002.
In fiscal 2016, the station was used by an average of 201 passengers daily (boarding passengers only).[1]