- Peak Island
- Perch Island
- Pine Island
- Packard Landing
- Packards
- Page Rock
- Paine Corner
- Paines Corner
- Palermo
- Palmer Island
- Palmyra
- Papoose Island
- Parent
- Paris
- Parker Head
- Parker Island
- Parkers
- Parkhurst
- Parkhurst Island
- Parkman
- Parks Island
- Parrot
- Parson Landing
- Parsonage Corner
- Parsonsfield
- Partiridge Island
- Partridge Island
- Partridge Island
- Partridge Island
- Partridge Island