- Lochwinnoch
- Locksley
- Lost Nation
- Lower Dacre
- Lower Stafford
- Lundys Corners
- Lafontaine Beach
- Lagoon City
- Lakeview Beach
- Langman
- Laurin
- Lefaives Corners
- Leigh's Corners
- Loretto
- Lovering
- Lorne
- Longlac
- Larder Lake
- Lorrain
- Lansdowne
- LaRue Mills
- Leeds
- Legge
- Lehighs Corners
- Lillies
- Little Brockville
- Long Point
- Lords Mills
- Lyn
- Lebanon