| Morgan, Jane | Long Range Planning Committee | | | |
| McNeill, Adam | Bicycle Advisory Committee (ABAC), 6/30/2025 | | | |
| Morgan-Wu, Sarah | Commission for Arts and Culture (ACAC), 2023 | Boards & Commissions | | |
| Mulroy, Stacey | Director, Recreation | Town Manager | | |
| Mietinen, Pasi | Clean Energy Future | | | |
| Mayo-Wells, Doug | Sustainable Transportation, ABAC | | | |
| McBride, Brian | Conservation Commission, Associate | Conservation, Planning | | |
| Muldoon, Patricia | Election Modernization Committee, League of Women Voters | | | |
| Moore, Chris | Long Range Planning Committee | Boards & Commissions | | |
| Mahon, Diane | Long Range Planning Committee | Boards & Commissions | | |
| Morales, Carlos | Civilian Police Advisory Board Study Committee, Envision Arlington Diversity Task Group | | | |
| Maxtutis, Jeff | Mass Ave/Appleton Design Review Committee, Transportation Advisory Committee | | | |
| Mongold, Neal | Affordable Housing Trust Fund Board | Town Manager | | |
| Melly, Ryan | Local Emergency Planning Committee, AFD Deputy Chief | Boards & Commissions, Town Manager | | |
| Marshall, Laurie | Local Emergency Planning Committee, AEMA/Aux | Boards & Commissions, Town Manager | | |
| Maxtutis, Jeffrey | TAC, Pct. Rep. 15-21, Vice Chair | Boards & Commissions, Town Manager | | |
| Morgan, Jane | Budget Revenue Task Force, School Committee | | | |
| Miano, Mark | Building Maintenance Comm | Boards & Commissions, Town Manager | | |
| Mullen, Scott | Zero Waste Arlington | Boards & Commissions, Town Manager | | |
| Melofchik, Beth | Historic Districts Commission, Broadway District, 6/2026 | Boards & Commissions, Town Manager | | |
