- Laidlaw Drive
- Laking Terrace
- Lamont Crescent
- Lancaster Boulevard
- Landsborough Avenue
- Langholm Street
- Laughren Crescent
- Laundon Terrace
- Laurier Avenue
- Lavery Heights
- Lawson Road
- Lear Gate
- Leblanc Court
- Ledwith Drive
- Leger Way
- Leitch Landing
- Leiterman Drive
- Lemieux Court
- Lesage Crescent
- Lingen Crescent
- Little Crescent
- Livingston Road
- Livock Trail
- Locker Place
- Lord Simcoe Court
- Lorne Scots Drive
- Lott Crescent
- Louis Saint Laurent Avenue
- Lowe Lane
- Lower Base Line East
- Lower Base Line West
- Luxton Drive
- Lydia Avenue
- Lyle Landing
- Lyndsay Court
- Lyons Court