- Brooklin
- Brownfield
- Buckfield
- Bucksport
- Bacons Corner
- Bailey Corner
- Bangs Beach
- Batchelders Crossing
- Belgrade Lakes
- Belle Island
- Benton Falls
- Benton Station
- Big Island
- Big Island
- Birch Island
- Birch Island
- Birch Island
- Black Island
- Blake Island
- Blodgett Island
- Blue Bell Island
- Browns Corner
- Browns Island
- Burnham
- Buxton
- Babbidge Island
- Bar Island
- Barter Island
- Barton Island
- Battery Island