Pig Island may refer to:
- Pig Island (Exuma), the Bahamas
- Pig Island (Newfoundland and Labrador), Canada
- Pig Island, New Zealand, in Lake Wakatipu
- Pig Island, County Down, a townland in County Down, Northern Ireland
- Pig Island (Queensland), Australia
- Pig Island (novel), a British thriller novel
- "Pig Island" (song), a song by Sandra Boynton and Michael Ford
- Pig, a small island in Ulithi atoll in the Federated States of Micronesia
- Pig Island, a fictional island in the Angry Birds films