| Enrei Ōjō Prefectural Natural Park | |
|---|---|
| 塩嶺王城県立自然公園 | |
| Location | Nagano Prefecture, Japan |
| Area | 13.40 km2 |
| Established | 25 June 1964 |
Enrei Ōjō Prefectural Natural Park (塩嶺王城県立自然公園 Enrei Ōjō kenritsu shizen kōen) is a Prefectural Natural Park in central Nagano Prefecture, Japan. Established in 1964, the park spans the borders of the municipalities of Okaya, Shiojiri, and Tatsuno.