| Cobscook Bay State Park | |
| Map: | USA Maine |
| Map Size: | 280 |
| Relief: | 1 |
| Location: | Edmunds, East Central Washington, Maine, United States |
| Coordinates: | 44.8433°N -67.1583°W |
| Area Acre: | 871 |
| Elevation: | 157feet |
| Established: | 1964 |
| Administrator: | Maine Department of Agriculture, Conservation and Forestry |
| Website: | Cobscook Bay State Park |
Cobscook Bay State Park is a public recreation area occupying on the western shore of Cobscook Bay in Washington County, Maine. The park offers a view of dramatically changing tides that on average can rise to high with some reaching as high as . The name Cobscook is a Maliseet-Passamaquoddy word for boiling tides. The state park is located on Whiting Bay approximately south of Dennysville and north of Whiting. It is managed by the Maine Department of Agriculture, Conservation and Forestry.
The park was created in 1964 when the Federal government offered to lease to the state of Maine lands that remain part of Moosehorn National Wildlife Refuge. The long-term agreement was arranged at no cost to the state.
The park offers hiking trails, picnicking, camping, boat launch, and bird watching. Over 200 species of birds have been noted, including the American bald eagle.