| Ōtaki-Ōkawa Prefectural Natural Park | |
|---|---|
| 大滝大川県立自然公園 | |
| Location | Kagawa Prefecture, Japan |
| Area | 23.63 km² |
| Established | 14 September 1992 |
Ōtaki-Ōkawa Prefectural Natural Park (大滝大川県立自然公園 Ōtaki-Ōkawa kenritsu shizen kōen) is a Prefectural Natural Park on the southern border of Kagawa Prefecture, Japan. Established in 1992, the park comprises two non-contiguous areas of the Sanuki Mountains. It includes Mount Ōtaki () (946 m) and Mount Ōkawa () (1043 m).