| Shimonii Station | |
| Native Name: | 下新駅 |
| Native Name Lang: | ja |
| Address: | 3287 Niimura, Matsumoto-shi, Nagano-ken 390-1241 |
| Country: | Japan |
| Coordinates: | 36.2251°N 137.9223°W |
| Operator: | Alpico Kōtsū |
| Line: | Kamikōchi Line |
| Distance: | 4.4 km from |
| Platforms: | 1 side platform |
| Tracks: | 1 |
| Code: | AK-06 |
| Opened: | 2 October 1921 |
| Passengers: | 90 |
| Pass Year: | FY2016 |
| Map Type: | Japan Nagano Prefecture#Japan |
is a railway station in the city of Matsumoto, Nagano, Japan, operated by the private railway operating company Alpico Kōtsū.
Shimonii Station is a station on the Kamikōchi Line and is 4.4 kilometers from the terminus of the line at Matsumoto Station.
The station has one ground-level side platform serving a single bi-directional track.
The station opened on 2 October 1921. The station building was rebuilt in 1997.
In fiscal 2016, the station was used by an average of 90 passengers daily (boarding passengers only).[1]