| Franklin Creek State Natural Area | |
| Iucn Category: | III |
| Map: | Illinois#USA |
| Map Width: | 225 |
| Location: | Lee County, Illinois, USA |
| Nearest City: | Franklin Grove, Illinois |
| Coordinates: | 41.8497°N -89.3358°W |
| Established: | 1970 |
| Governing Body: | Illinois Department of Natural Resources |
Franklin Creek State Natural Area is an Illinois state park on in Lee County, Illinois, United States. Franklin Creek State Natural Area was dedicated in 1982, making it the 24th nature preserve in Illinois.