Muttonbird Island may refer to:
Muttonbird Island Nature Reserve, New South Wales, Australia Muttonbird Island (Lord Howe Island), offshore island of Lord Howe Island, New South Wales, Australia One of The Twelve Apostles (Victoria) in Australia Mutton Bird Island, Tasmania, Australia Shelter Island (Western Australia), also known as Muttonbird Island
See also Tītī / Muttonbird Islands, New Zealand