- Rivers End
- Rock Island
- Rock Island
- Rodgers Island
- Roque Island
- Round Island
- Round Island
- Ram Island
- Raynes Island
- Redin Island
- Remick Corners
- Roberts Corner
- Roberts Corner
- Rocks Nose
- Rosemary
- Ross Corner
- Ruin Corner
- Randolph
- Raymond
- Richmond
- Rome
- Rockport
- Rockwood
- Round Pond
- Rangeley
- Readfield
- Reed
- Robbinston
- Rockland
- Roque Bluffs