| Thurston Bay Marine Provincial Park | |
| Iucn Category: | II |
| Map: | Vancouver Island##British Columbia |
| Relief: | yes |
| Location: | British Columbia, Canada |
| Nearest City: | Campbell River |
| Coordinates: | 50.3733°N -125.3275°W |
| Area Km2: | 5.31 |
| Governing Body: | BC Parks |
Thurston Bay Marine Provincial Park is a provincial park on the northwest side of Sonora Island in British Columbia, Canada.