| Twin Harbors State Park | |
| Map: | USA Washington#USA |
| Map Size: | 280 |
| Relief: | 1 |
| Location: | Grays Harbor, Washington, United States |
| Coordinates: | 46.8567°N -124.1069°W |
| Area Acre: | 225 |
| Elevation: | 16feet |
| Established: | 1937 |
| Operator: | Washington State Parks and Recreation Commission |
| Website: | Twin Harbors State Park |
Twin Harbors State Park is a public recreation area covering on the Pacific Ocean two miles south of the town of Westport in Grays Harbor County, Washington. The site was once a U.S. Army training ground, which the state began acquiring for park use in 1937. The state park offers camping, fishing, clamming, beachcombing, and a half-mile interpretive trail in a shoreline pine forest.