| Pelso Strict Nature Reserve | |
| Iucn Category: | Ia |
| Map: | Finland |
| Relief: | 1 |
| Location: | Northern Ostrobothnia, Finland |
| Coordinates: | 64.4344°N 26.2394°W |
| Area Km2: | 19 |
| Established: | 1982 |
| Governing Body: | Metsähallitus |
Pelso Strict Nature Reserve (Finnish: Pelson luonnonpuisto) is a strict nature reserve located in Northern Ostrobothnia, Finland. The swampy reserve is noted for its bird fauna.