- Laderoute Avenue
- Ladouceur Street
- Lady Ellen Place
- Lafayette Private
- Lakeside Avenue
- Lakeview Terrace
- Lambeth Walk
- Lambton Avenue
- Lamira Street
- Lampman Crescent
- Lanark Avenue
- Lancaster Road
- Lang's Road
- Langevin Avenue
- Langstrom Crescent
- Laperriere Avenue
- Lapointe Street
- Larch Street
- Larchwood Avenue
- Larkin Street
- Larose Avenue
- Lasalle Street
- Latchford Road
- Lats Private
- Lauder Drive
- Laurel Street
- Laurentian Place
- Laurier Avenue East
- Laurier Avenue West
- Lawn Avenue
- Lawson Avenue
- Laxton Crescent
- Lazard Street
- Leaside Avenue
- Leboutillier Avenue
- Lebreton Street North
- Lebreton Street South
- Leckie Private
- Ledbury Avenue
- Leeds Avenue
- Lees Avenue
- Legacy Road
- Leighton Terrace
- Lemay Crescent
- Lenester Avenue
- Lennox Park Avenue
- Leonard Avenue
- Leopolds Drive
- Lepage Avenue
- Leslie Avenue
- Letchworth Road
- Lett Street
- Lewis Street
- Lexington Street
- Leyland Private
- Lilas Private
- Lilibet Crescent
- Lillico Drive
- Lincoln Avenue
- Lincoln Heights Road
- Lindbergh Private
- Linden Terrace
- Lindenlea Road
- Lindenpark Private
- Lindsay Street
- Linton Road
- Lisgar Street
- Little London Private
- Liverpool Court
- Livingstone Avenue
- Lochaber Avenue
- Lockhart Avenue
- Lodge Road
- Logan Avenue
- Lola Street
- London Terrace
- Lonsdale Road
- Loon Lane
- Loosestrife Way
- Loretta Avenue North
- Loretta Avenue South
- Lorne Avenue
- Lorne Greene Way
- Lorraine Avenue
- Lorry Greenberg Drive
- Louis-Pasteur Private
- Louisa Street
- Louisiana Avenue
- Lovitt Road
- Lowrey Street
- Luc Street
- Lyman Street
- Lynda Lane
- Lyndale Avenue
- Lynhurst Avenue
- Lynwood Avenue
- Lyon Street North
- Lyon Street South
- Lysander Place