| Monmouth Rail Trail and Gooderham Park Walking Trail Upgrade | Approved | — | — | $17K |
| Mono Asset Management Project | Approved | — | — | $4K |
| Monsignor J Pereyma Catholic Secondary School | Complete | — | — | — |
| Monsignor J. E. Ronan Addition | Planning | Service Improvement and Enhancement C04 | 10 | $3.9M |
| Monsignor Leo Cleary Catholic Elementary School | Complete | — | — | $521K |
| Monsignor Morrisson Catholic Elementary School | Complete | Service Improvement and Enhancement C04 | CW | $524K |
| Monsignor Paul Dwyer Catholic Secondary School | Under construction | State of Good Repair C03 | CW | $56.0M |
| Monsignor Philip Coffey Catholic Elementary School | Complete | — | — | $3.1M |
| Morningside Connections | active | — | — | — |
| Morris-Turnberry Asset Management Project | Approved | — | — | $4K |
| Mother St. Bride Catholic Elementary School | Complete | Growth Related C05 | CW | $900K |
| Mother Teresa Catholic Elementary School | Complete | — | — | $506K |
| Mount Albion Public Elementary School | Complete | Service Improvement and Enhancement C04 | CW | $6.5M |
| Mount Hope Elementary School | Planning | State of Good Repair C03 | CW | $9.1M |
| Mount Pleasant 9 Public Elementary School | Under construction | State of Good Repair C03 | CW | $33.8M |
| Mount Pleasant Catholic Elementary School | Under construction | Service Improvement and Enhancement C04 | CW | $29.6M |
| Mount Pleasant Secondary School | Planning | Growth Related C05 | 17 | $84.2M |
| Mountain View Public Elementary School | Complete | State of Good Repair C03 | CW | $1.9M |
| Moving all Toronto-based Attorney General agencies and tribunals into one location | Complete | Service Improvement and Enhancement C04 | CW | $0 |
| Multi-Branch Renovation SOGR | Toronto Public Library | State of Good Repair C03 | CW | $49K |
| Munden Park Public Elementary School | Complete | State of Good Repair C03 | CW | $771K |
| Municipality of Arran-Elderslie Asset Management Project | Approved | — | — | $4K |
| Municipality of Bayham - Asset Management Project | Approved | — | — | $4K |
| Municipality of Brighton - Asset Management Project | Approved | — | — | $5K |
| Municipality of Chatham-Kent Asset Management Project | Approved | — | — | $35K |
| Municipality of Clarington - Asset Management Project | Approved | — | — | $14K |
| Municipality of French River - Asset Management Project | Approved | — | — | $4K |
| Municipality of Gordon/Barrie Island Asset Management Project | Approved | — | — | $7K |
| Municipality of Greenstone Asset Management Project | Approved | — | — | $5K |
| Municipality of Grey Highlands Asset Management Project | Approved | — | — | $5K |
| Municipality of Huron Shores Asset Management Project | Approved | — | — | $4K |
| Municipality of Killarney Asset Management Project | Approved | — | — | $4K |
| Municipality of Leamington Asset Management Project | Approved | — | — | $7K |
| Municipality of Magnetawan Asset Management Project | Approved | — | — | $4K |
| Municipality of Markstay-Warren Asset Management Project | Approved | — | — | $4K |
| Municipality of Neebing Asset Management Project | Approved | — | — | $3K |
| Municipality of North Middlesex Asset Management Project | Approved | — | — | $4K |
| Municipality of Powassan Asset Management Project | Approved | — | — | $4K |
| Municipality of Shuniah Asset Management Project | Approved | — | — | $4K |
| Municipality of Sioux Lookout Asset Management Project | Approved | — | — | $5K |
| Municipality of St. Charles Asset Management Project | Approved | — | — | $4K |
| Municipality of Temagami Asset Management Project | Approved | — | — | $889.27 |
| Municipality of Trent Hills Asset Management Project | Approved | — | — | $5K |
| Municipality of Tweed Asset Management Project | Approved | — | — | $4K |
| Murray Centennial Public Elementary School | Under construction | Growth Related C05 | 02 | $11.1M |
| Muskoka Asset Management Program | Approved | — | — | $11K |
| Muskoka Lakes Asset Management Project | Approved | — | — | $4K |
| Mutchmor Public Elementary School | Complete | Service Improvement and Enhancement C04 | CW | $4.6M |
| Nantyr Shores Secondary School | Under construction | State of Good Repair C03 | CW | $12.7M |
| Nash Upper Stoney Creek Public Elementary School | Under construction | State of Good Repair C03 | CW | $16.7M |