| Member Name | Organization |
|---|
| Gary MacDonald | Regional Municipality of Waterloo |
| Bruce C. Macgregor | Regional Municipality of York |
| Douglas MacKay | Regional Municipality of Durham |
| Dale Mackenzie | City of Markham |
| Norman MacKinnon | The Greer Galloway Group Inc. |
| Uwe Mader | City of Toronto |
| Tim Madill | City of Peterborough |
| Allan M. Magi | City of Burlington |
| M. Maguire | City of Toronto |
| Shane Maguire | City of London |
| Khaled Mamun | Regional Municipality of York |
| Kay Man Poon | City of Markham |
| Wendi Mannerow | City of Greater Sudbury |
| Antony Manoharan | Town of Whitby |
| Danielle Marchant | Regional Municipality of Halton |
| Fern Marcuccio | City of Ottawa |
| Tim Marotta | City of St. Catharines |
| Jason Marr | Regional Municipality of Niagara |
| Peter Marra | Town of LaSalle |
| Colin Marshall | City of Toronto |
| Ray Marshall | Municipality of Callander |
| Cynthia Martin | Regional Municipality of York |
| Anthony Martuccio | City of St. Catharines |
| Paolo Masaro | City of Vaughan |
| Bruce Mason | City of Ottawa |
| William Mason | City of Toronto |
| Scott Mathers | City of London |
| Marc J. Mathon | Town of Mattawa |
| Cora M. Matthews | City of Toronto |
| John D. Matthews | |
| Betty Matthews-Malone | Regional Municipality of Niagara |
| Pat Mauro | City of Thunder Bay |
| Paul May | Regional Municipality of York |
| Robert Mayer | City of Vaughan |
| Steve Mayhew | Regional Municipality of Durham |
| Frank Mazzotta | City of Brampton |
| Helen McArthur | City of Hamilton |
| Robert McAuley | County of Prince Edward |
| W.O. McBridge | |
| Nathalie McCutcheon | Regional Municipality of Durham |
| Donald J. McDonald | |
| Laura McDowell | Regional Municipality of York |
| Jeff McEwen | City of Ottawa |
| Jim McGilton | Regional Municipality of Durham |
| Shirley McLean | Regional Municipality of Halton |
| Scott McMillan | Town of Oakville |
| Bruce McPherson | City of Toronto |
| Brad McRoberts | City of Owen Sound |
| Frederik Meco | City of Toronto |
| David Melton | Regional Municipality of Peel |
| Muhammad Afzal Memon | City of Kitchener |
| Marie-Josee Merritt | Loyalist Township |
| David Mhango | City of Markham |
| Matthew Miedema | City of Thunder Bay |
| Fahd Mikhael | City of Windsor |
| Shawna Milanovic | City of London |
| Glen Millar | County of Lambton |
| Sherri-Marie Millar | Town of Fort Erie |
| Tom Millis | City of Toronto |
| Chris Mills | Town of Halton Hills |
| Junior Mohammed | Regional Municipality of Peel |
| Mike Molinari | Town of Whitchurch-Stouffville |
| Golam Monsur | City of Brampton |
| Jose Montouto | Regional Municipality of Peel |
| Shane Moonah | City of Toronto |
| Gary Moore | City of Hamilton |
| Robert G. Moore | |
| Kamal Morcos | City of Toronto |
| John Morgante | City of Hamilton |
| Andre Morin | City of Sarnia |
| Janet Mosher | Regional Municipality of Durham |
| Steven Cabral Mota | Regional Municipality of York |
| Paul Mourad | City of Windsor |
| Peter Moyer | Municipality of Sioux Lookout |
| Arup Mukherjee | Regional Municipality of York |
| Vince Musacchio | City of Vaughan |
