| Meister, Pamela | Historical Commission | Boards & Commissions | | |
| Melly, Ryan | Local Emergency Planning Committee, AFD Deputy Chief | Boards & Commissions, Town Manager | | |
| Melofchik, Beth | Historic Districts Commission, Broadway District, 6/2026 | Boards & Commissions, Town Manager | | |
| Meyer, Johanna | Envision Arlington Standing Committee | Boards & Commissions | | |
| Miano, Mark | Building Maintenance Comm | Boards & Commissions, Town Manager | | |
| Michele, Hassler | Cemetery Commission, (6/2025) | | | |
| Mietinen, Pasi | Clean Energy Future | | | |
| Migliazzo, Sophie | Finance Committee (Prct. 4, 2024) | | | |
| Milan, Charlotte | Municipal Vulnerability Preparedness, Recycling Coordinator | | | |
| Miller, Cheryl | Master Plan Update Advisory Committee | | | |
| Mirak, Jill | Parking Advisory Committee, Chamber of Commerce | | | |
| Mongold, Neal | Affordable Housing Trust Fund Board | Town Manager | | |
| Moore, Chris | Long Range Planning Committee | Boards & Commissions | | |
| Moore, Christopher | Town Meeting Procedures Committee | Boards & Commissions, Town Manager | | |
| Morales, Carlos | Civilian Police Advisory Board Study Committee, Envision Arlington Diversity Task Group | | | |
| Morgan, David | Environmental Planner/Conservation Agent | Conservation, Planning | (781) 316-3012 | dmorgan@town.arlington.ma.us |
| Morgan, David | Open Space Committee, Planning Department | | | |
| Morgan, David | Clean Energy Future, Conservation Agent | | | |
| Morgan, Jane | Long Range Planning Committee | | | |
| Morgan, Jane | Budget Revenue Task Force, School Committee | | | |
