- Little Rock
- Little Tavern Island
- Lobster Rock
- Lobster Rock
- Lonetown
- Long Hill
- Long Hill
- Long Hill
- Long Island
- Long Ridge
- Long Rock
- Long Rock
- Long Rock
- Lord Island
- Lords Point
- Lordship
- Lovely Street
- Lovers Island
- Lower City
- Lower Merryall
- Lydallville
- Lyddy Island
- Lyme Station
- Lyons Plain
- Litchfield
- Lake Pocotopaug
- Ledyard Center
- Long Hill