| McCabe, Charlie | Minuteman Bikeway 25th Anniversary Committee | | | |
| McBride, Brian | Open Space Committee, Resident | | | |
| McBride, Brian | Community Preservation Act Committee, Conservation Commission | Town Manager | | |
| McBride, Brian | Conservation Commission, Associate | Conservation, Planning | | |
| Mayo-Wells, Doug | Sustainable Transportation, ABAC | | | |
| Mayo-Wells, Doug | Bicycle Advisory Committee (ABAC), 6/30/2025 | | | |
| Mayer, Leslie | Park & Recreation Commission, 2024 | | | lmayer@town.arlington.ma.us |
| Mayer, Leslie | Community Preservation Act Committee, Park & Recreation Commission | Town Manager | | |
| Maxtutuis, Jeff | Transportation Advisory Committee Rep. | | | |
| Maxtutis, Jeffrey | TAC, Pct. Rep. 15-21, Vice Chair | Boards & Commissions, Town Manager | | |
| Maxtutis, Jeff | Mass Ave/Appleton Design Review Committee, Transportation Advisory Committee | | | |
| Mastro, Greta | Commission for Arts & Culture (ACAC), 2025 | | | |
| Mason, Michael | High School Building Committee, School Chief Financial Officer | | | |
| Mason, Michael | Audit Advisory Committee, CFO Schools | Boards & Commissions, Town Manager | | |
| Mason, Michael | Budget Revenue Task Force, CFO School Department | | | |
| Martini, Peter | Building Committee (PTBC), 6/2024 | | | |
| Martin, Anna | Prevention Services Manager | Health & Human Services | (781) 316-3193 | amartin@town.arlington.ma.us |
| Marshall, Laurie | Local Emergency Planning Committee, AEMA/Aux | Boards & Commissions, Town Manager | | |
| Mann, Dana | Audit Advisory Committee, Acting Director of Assessors | Town Manager | | |
| Makowka, Steve | Historic Districts Commission, Chair, 2024 | Boards & Commissions, Town Manager | | |
