Long Island ("long island" in English) can refer to:
Antigua and Barbuda
- Long Island, island
Australia
- Long Island, island of the Long Island Nature Reserve, New South Wales
- Long Island, island of the Whitsunday archipelago, Queensland
- Long Island, island of the Tasmania
Bahamas
- Long Island, island
Canada
- Long Island, name of various islands
Namibia
- Long Island, two islands (North and South) of the Penguin islands
New Zeland
- Long Island, name of various islands
Papua New Guinea
- Long Island, name of various islands
United States of America
- Long Island, a city in Phillips County, Kansas
- Long Island, a town in Cumberland County, Maine
- Long Island, town in Campbell County, Virginia
- Long Island, island of the state of New York