| Kamisakai Station | |
| Style: | JR East |
| Native Name: | 上境駅 |
| Native Name Lang: | ja |
| Address: | Ichiyama, Iiyama-shi, Nagano-ken 389-2602 |
| Country: | Japan |
| Coordinates: | 36.9379°N 138.4192°W |
| Operator: | JR East |
| Line: | Iiyama Line |
| Distance: | from |
| Platforms: | 1 side platform |
| Tracks: | 1 |
| Status: | unstaffed |
| Opened: | 6 July 1923 |
| Former: | Nqzawa-Onsen (to 1944) |
| Passengers: | 14 |
| Pass Year: | FY2011 |
| Map Type: | Japan Nagano Prefecture#Japan |
| Map Dot Label: | Kamisakai Station |
is a railway station in the city of Iiyama, Nagano Prefecture, Japan operated by East Japan Railway Company (JR East). In older station photos, its name is hyphenated "Kami-Sakai".
Kamisakai Station is served by the Iiyama Line, and is 31.3 kilometers from the starting point of the line at Toyono Station.[1]
The station consists of one side platform serving one bi-directional track. The station is unattended.[1]
Kamisakai Station opened on 6 July 1923 as . It was renamed to its present name with the nationalisation of the Iiyama line on 1 June 1944. With the privatization of Japanese National Railways (JNR) on 1 April 1987, the station came under the control of JR East. A new station building was completed in December 2006.[1]