- Seahorse Islands
- Shublik Island
- Solivik Island
- Spy Islands
- Stockton Islands
- Stump Island
- South Island
- Sachem Island
- Sasby Island
- Schooner Island
- Scow Bay
- Shingle Island
- Shrub Islet
- Skiff Island
- Spanish Islands
- Spray Island
- Station Island
- Step Island
- Stewart Rock
- Stop Island
- Strait Island
- Sukoi Islets
- Summit Island
- Sumner Island
- Sheep Mountain Lodge
- Susitna North
- Sutton-Alpine
- South Punuk Island
- Saint Lawrence Island
- Saint Michael Island