Shelter Island may refer to: Places Shelter Island (Michigan), an island in Hampton Township, Michigan Shelter Island (Alaska), an island in the Alexander Archipelago, Alaska Shelter Island, Montana, an island in Flathead Lake, Montana Shelter Island (Hong Kong), an island in Port Shelter, Hong Kong Shelter Island (Western Australia), an island in Western Australia Shelter Island, New York, a town in Suffolk County, New York Shelter Island (CDP), New York, a hamlet and census-designated place in the above town Shelter Island Heights, New York, a hamlet and census-designated place in the above town Shelter Island Sound, a sound in Suffolk County, New York, surrounding Shelter Island Shelter Island (Fourth Lake), an island in Herkimer County, New York Shelter Island, San Diego, a neighbourhood of Point Loma in San Diego, California Shelter Island meteorite, Mars Other Shelter Island Conference, in physics, 1947 Shelter Island (2003 film), a U.S. film released in 2003, starring Ally Sheedy Shelter Island (How I Met Your Mother), a 2008 episode