Port of Boston, Maritime port in Boston, United States

The Port of Boston is a seaport in Boston Harbor whose cargo facilities lie in Charlestown, East Boston, South Boston and the neighbouring city of Everett; downtown Long Wharf now handles ferries and leisure boats. South Boston holds the Conley Terminal container port, the Black Falcon Cruise Terminal and the Boston Fish Pier, the oldest working fishing pier in the United States. Massport runs the port, with three areas of activity: cargo, cruises and ferry service.

The port began as a colonial trading hub and became central to American independence movements, later developing into a major commercial center for the growing nation. Its economic role shaped Boston's growth from a settlement into a major city.

The Boston Fish Pier in South Boston is the oldest continuously operating fishing port in the United States. Fishing boats still land their catch there, and the pier's auction halls once set the day's prices for the region's fish trade.

Cruise ships use the Black Falcon Cruise Terminal in South Boston from April to November; in 2009 it handled 200,000 passengers. The Boston Fish Pier, also in South Boston, is the oldest working fishing dock in the United States. Cargo facilities sit in Charlestown, East Boston, South Boston and Everett, reached by I-90, I-93, I-95 and U.S. 1, with a truck-only haul road.

The first 12,000-TEU-class containership, Ever Fortune, reached Conley Terminal on 16 January 2022, after harbor channels were deepened from 40 to 51 feet for larger vessels.