This is a list of postal codes in Canada where the first letter is M. Postal codes beginning with M (except M0R and M7R) are located within the city of Toronto in the province of Ontario. Only the first three characters are listed, corresponding to the Forward Sortation Area (FSA).

Canada Post provides a free postal code look-up tool on its website,^[1] via its applications for such smartphones as the iPhone and BlackBerry,^[2] and sells hard-copy directories and CD-ROMs. Many vendors also sell validation tools, which allow customers to properly match addresses and postal codes. Hard-copy directories can also be consulted in all post offices, and some libraries.

Toronto

There are currently 103 FSAs in this list. There are no rural FSAs in Toronto, hence no postal codes should start with M0. However, a handful of individual special-purpose codes in the M0R FSA are assigned to "Gateway Commercial Returns, 4567 Dixie Rd, Mississauga" as a merchandise returns label for freepost returns to high-volume vendors such as Amazon and the Shopping Channel.^[3]

The letters "D", "F", "I", "O", "Q" and "U" are not used in the third place in any Canadian postal code.

M1A Not assigned	M2A Not assigned	M3A North York (Parkwoods)	M4A North York (Victoria Village)	M5A Downtown Toronto (Regent Park / Harbourfront)	M6A North York (Lawrence Manor / Lawrence Heights)	M7A Queen's Park (Ontario Provincial Government)	M8A Not assigned	M9A Etobicoke (Islington Avenue)
M1B Scarborough (Malvern / Rouge)	M2B Not assigned	M3B North York (Don Mills) North	M4B East York (Parkview Hill / Woodbine Gardens)	M5B Downtown Toronto (Garden District, Ryerson)	M6B North York (Glencairn)	M7B Not assigned	M8B Not assigned	M9B Etobicoke (West Deane Park / Princess Gardens / Martin Grove / Islington / Cloverdale)
M1C Scarborough (Rouge Hill / Port Union / Highland Creek)	M2C Not assigned	M3C North York (Don Mills) South (Flemingdon Park)	M4C East York (Woodbine Heights)	M5C Downtown Toronto (St. James Town)	M6C York (Humewood-Cedarvale)	M7C Not assigned	M8C Not assigned	M9C Etobicoke (Eringate / Bloordale Gardens / Old Burnhamthorpe / Markland Wood)
M1E Scarborough (Guildwood / Morningside / West Hill)	M2E Not assigned	M3E Not assigned	M4E East Toronto (The Beaches)	M5E Downtown Toronto (Berczy Park)	M6E York (Caledonia-Fairbanks)	M7E Not assigned	M8E Not assigned	M9E Not assigned
M1G Scarborough (Woburn)	M2G Not assigned	M3G Not assigned	M4G East York (Leaside)	M5G Downtown Toronto (Central Bay Street)	M6G Downtown Toronto (Christie)	M7G Not assigned	M8G Not assigned	M9G Not assigned
M1H Scarborough (Cedarbrae)	M2H North York (Hillcrest Village)	M3H North York (Bathurst Manor / Wilson Heights / Downsview North)	M4H East York (Thorncliffe Park)	M5H Downtown Toronto (Richmond / Adelaide / King)	M6H West Toronto (Dufferin / Dovercourt Village)	M7H Not assigned	M8H Not assigned	M9H Not assigned
M1J Scarborough (Scarborough Village)	M2J North York (Fairview / Henry Farm / Oriole)	M3J North York (Northwood Park / York University)	M4J East York East Toronto (The Danforth East)	M5J Downtown Toronto (Harbourfront East / Union Station / Toronto Islands)	M6J West Toronto (Little Portugal / Trinity)	M7J Not assigned	M8J Not assigned	M9J Not assigned
M1K Scarborough (Kennedy Park / Ionview / East Birchmount Park)	M2K North York (Bayview Village)	M3K North York (Downsview) East (CFB Toronto)	M4K East Toronto (The Danforth West / Riverdale)	M5K Downtown Toronto (Toronto Dominion Centre / Design Exchange)	M6K West Toronto (Brockton / Parkdale Village / Exhibition Place)	M7K Not assigned	M8K Not assigned	M9K Not assigned
M1L Scarborough (Golden Mile / Clairlea / Oakridge)	M2L North York (York Mills / Silver Hills)	M3L North York (Downsview) West	M4L East Toronto (India Bazaar / The Beaches West)	M5L Downtown Toronto (Commerce Court / Victoria Hotel)	M6L North York (North Park / Maple Leaf Park / Upwood Park)	M7L Not assigned	M8L Not assigned	M9L North York (Humber Summit)
M1M Scarborough (Cliffside / Cliffcrest / Scarborough Village West)	M2M North York (Willowdale / Newtonbrook)	M3M North York (Downsview) Central	M4M East Toronto (Studio District)	M5M North York (Bedford Park / Lawrence Manor East)	M6M York (Del Ray / Mount Dennis / Keelsdale and Silverthorn)	M7M Not assigned	M8M Not assigned	M9M North York (Humberlea / Emery)
M1N Scarborough (Birch Cliff / Cliffside West)	M2N North York (Willowdale) South	M3N North York (Downsview) Northwest	M4N Central Toronto (Lawrence Park)	M5N Central Toronto (Roselawn)	M6N York (Runnymede / The Junction North)	M7N Not assigned	M8N Not assigned	M9N York (Weston)
M1P Scarborough (Dorset Park / Wexford Heights / Scarborough Town Centre)	M2P North York (York Mills West)	M3P Not assigned	M4P Central Toronto (Davisville North)	M5P Central Toronto (Forest Hill North & West)	M6P West Toronto (High Park / The Junction South)	M7P Not assigned	M8P Not assigned	M9P Etobicoke (Westmount)
M1R Scarborough (Wexford / Maryvale)	M2R North York (Willowdale) West	M3R Not assigned	M4R Central Toronto (North Toronto West)	M5R Central Toronto (The Annex / North Midtown / Yorkville)	M6R West Toronto (Parkdale / Roncesvalles)	M7R Mississauga Canada Post Gateway Processing Centre (Enclave of L4W)	M8R Not assigned	M9R Etobicoke (Kingsview Village / St. Phillips / Martin Grove Gardens / Richview Gardens)
M1S Scarborough (Agincourt)	M2S Not assigned	M3S Not assigned	M4S Central Toronto (Davisville)	M5S Downtown Toronto (University of Toronto / Harbord)	M6S West Toronto (Runnymede / Swansea)	M7S Not assigned	M8S Not assigned	M9S Not assigned
M1T Scarborough (Clarks Corners / Tam O'Shanter / Sullivan)	M2T Not assigned	M3T Not assigned	M4T Central Toronto (Moore Park / Summerhill East)	M5T Downtown Toronto (Kensington Market / Chinatown / Grange Park)	M6T Not assigned	M7T Not assigned	M8T Not assigned	M9T Not assigned
M1V Scarborough (Milliken / Agincourt North / Steeles East / L'Amoreaux East)	M2V Not assigned	M3V Not assigned	M4V Central Toronto (Summerhill West / Rathnelly / South Hill / Forest Hill SE / Deer Park)	M5V Downtown Toronto (CN Tower / King and Spadina / Railway Lands / Harbourfront West / Bathurst Quay / South Niagara / Island airport)	M6V Not assigned	M7V Not assigned	M8V Etobicoke (New Toronto / Mimico South / Humber Bay Shores)	M9V Etobicoke (South Steeles / Silverstone / Humbergate / Jamestown / Mount Olive / Beaumond Heights / Thistletown / Albion Gardens)
M1W Scarborough (Steeles West / L'Amoreaux West)	M2W Not assigned	M3W Not assigned	M4W Downtown Toronto (Rosedale)	M5W Downtown Toronto Stn A PO Boxes 25 The Esplanade (Enclave of M5E)	M6W Not assigned	M7W Not assigned	M8W Etobicoke (Alderwood / Long Branch)	M9W Etobicoke Northwest (Clairville / Humberwood / Woodbine Downs / West Humber / Kipling Heights / Rexdale / Elms / Tandridge / Old Rexdale)
M1X Scarborough (Upper Rouge)	M2X Not assigned	M3X Not assigned	M4X Downtown Toronto (St. James Town / Cabbagetown)	M5X Downtown Toronto (First Canadian Place / Underground city)	M6X Not assigned	M7X Not assigned	M8X Etobicoke (The Kingsway / Montgomery Road / Old Mill North)	M9X Not assigned
M1Y Not assigned	M2Y Not assigned	M3Y Not assigned	M4Y Downtown Toronto (Church and Wellesley)	M5Y Not assigned	M6Y Not assigned	M7Y East Toronto Business reply mail Processing Centre 969 Eastern (Enclave of M4L)	M8Y Etobicoke (Old Mill South / King's Mill Park / Sunnylea / Humber Bay / Mimico NE / The Queensway East / Royal York South East / Kingsway Park South East)	M9Y Not assigned
M1Z Not assigned	M2Z Not assigned	M3Z Not assigned	M4Z Not assigned	M5Z Not assigned	M6Z Not assigned	M7Z Not assigned	M8Z Etobicoke (Mimico NW / The Queensway West / South of Bloor / Kingsway Park South West / Royal York South West)	M9Z Not assigned