- Sams Island
- Sand Beach
- Sand Beach Ledge
- Sand Island
- Sand Island
- Sand Island
- Saras Island
- Sargents Island
- Sawyers Island
- Sawyers Island
- Schoodic
- Schoodic Island
- Scott Island
- Scott Islands
- Scrag Island
- Scrag Island
- Scraggy Island
- Seawall
- Second Island
- Sellers Island
- Shabby Island
- Sheep Island
- Sheep Island
- Sheep Island
- Sheep Island
- Sheep Island
- Sheep Island
- Sheep Island
- Sheep Porcupine Island
- Sheephead Island