| Trinidad Lake State Park | |
| Map: | USA Colorado |
| Map Width: | 260 |
| Location: | Las Animas County, Colorado, United States |
| Nearest City: | Trinidad, CO |
| Coordinates: | 37.1456°N -104.5703°W |
| Established: | 1980 |
| Visitation Num: | 300,576 |
| Visitation Year: | 2021 |
| Visitation Ref: | [1] |
| Governing Body: | Colorado Parks & Wildlife |
Trinidad Lake State Park is a state park west of Trinidad, Colorado, United States. The park protects Trinidad Lake, a dammed reservoir. There are hiking trails, and camping and boating opportunities. The park features historical attractions such as the coal mining ruins at Cokedale. An exposure of the Cretaceous–Paleogene boundary (K–Pg boundary) is visible in the southern part of the park.A portion of the mountain route of the Santa Fe Trail runs through the park.