- Lagoon Heights
- Lamberts Cove
- Lobsterville
- Lone Rock
- Lone Rock
- Lone Rock
- Longview
- Lovers Rock
- Lands End
- Lanesville
- Leightons Corner
- Linebrook
- Little Egg Rock
- Little Haste
- Little Misery Island
- Little Nahant
- Little Neck
- Little Pine Island
- Londoner
- Long Island
- Lowe Island
- Lowell Junction
- Lunt Rock
- Lynnhurst
- Laurel Park
- Lithia
- Little Quabbin Island
- Loudville
- Leverett Station
- Locks Village