Deer Island may refer to:
In Canada
In Ireland
In the United States
- Alaska:
- Deer Isle, Maine
- Deer Island (Massachusetts)
- Deer Island (Mississippi)
- Deer Island (Montana), an island in Flathead Lake
- Deer Island (Thousand Islands), New York
- Deer Island, Oregon
- North Deer Island (Texas)
See also
- Deer Island Lake
- Île aux Cerfs ('Deer Isle')
- Cerf Island ("Deer" Island)