Harbour Island or Harbor Island may refer to:
Harbor Island Harbor Island, Newport Beach, California, US Harbor Island, San Diego, California, US Harbor Island, Phippsburg, Maine, US Harbor Island National Wildlife Refuge, Potagannissing Bay, Michigan, US Harbor Island, at Grand Haven, Michigan, US Harbor Island, at Wrightsville Beach, North Carolina, US Harbor Island, South Carolina, Beaufort County, South Carolina, US Harbor Island, Seattle, Washington, US
Harbour Island Harbour Island, Bahamas Harbour Island (Little Bay Islands), Newfoundland and Labrador, Canada Harbour Island (Ramea Islands), Newfoundland and Labrador, Canada Harbour Island (Tampa), Florida, US
See also Coaster's Harbor Island, Narragansett Bay, Newport, Rhode Island, US North Harbour Island, Lake Erie, Ontario, Canada