| Official Name: | Prospect Harbor, Maine |
| Settlement Type: | Village |
| Pushpin Map: | Maine#USA |
| Pushpin Label: | Prospect Harbor |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Maine |
| Subdivision Type2: | County |
| Subdivision Name2: | Hancock |
| Subdivision Type3: | Town |
| Subdivision Name3: | Gouldsboro |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 20 |
| Coordinates: | 44.4089°N -68.0261°W |
| Area Code: | 207 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 573836 |
Prospect Harbor is an unincorporated community in the town of Gouldsboro, Hancock County, Maine, United States. Its ZIP code is 04669.[1]