Great Swamp may refer to several places:

United States Great Baehre Swamp, New York Great Black Swamp, Ohio Great Cypress Swamp, Delaware and Maryland Great Dismal Swamp, Virginia and North Carolina Great Swamp (New York), New York Great Swamp Fight, southern Rhode Island Great Swamp Brook, New Jersey Great Swamp National Wildlife Refuge, New Jersey Great Swamp, a former wetland in Massachusetts, part of which is now the Alewife Brook Reservation

New Zealand Great Moss Swamp