| Provincetown Harbor | |
|---|---|
 Provincetown Harbor, looking south-east from Pilgrim Monument | |
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| Location | |
| Country | United States |
| Location | Provincetown, Massachusetts |
| Coordinates | 42°02′41″N 70°10′13″W / 42.044593°N 70.170244°W |
Provincetown Harbor is a large natural harbor located in the town of Provincetown, Massachusetts. The harbor is mostly 30 to 90 feet (9 to 27 m) deep and stretches roughly 1 mile (1.6 km) from northwest to southeast and 2 miles (3.2 km) from northeast to southwest – one large, deep basin with no dredged channel necessary for boats to enter and exit.
A tall green buoy east of Long Point (i.e., the tip of Cape Cod) marks the entrance to Provincetown Harbor from Cape Cod Bay.