| Newell, Carlene | Board of Youth Services, 2017 | Boards & Commissions | | |
| Newberg, Helene | Arlington Civilian Police Advisory Commission, 6/2025 | | | |
| Nagle, Jack | Affordable Housing Trust Fund Board | | | |
| Muszynski, Mary | CDBG Subcommittee, CDBG Administrator | Town Manager | | |
| Murray, Caroline | Envision Arlington Standing Committee | | | |
| Munsey, James | Central School Feasibility Study Committee | Boards & Commissions | | |
| Mulroy, Stacey | Director, Recreation | Town Manager | | |
| Mullen, Scott | Zero Waste Arlington | Boards & Commissions, Town Manager | | |
| Muldoon, Patricia | Election Modernization Committee, League of Women Voters | | | |
| Moulton, Brucie | Municipal Vulnerability Preparedness, Citizen | | | |
| Moulton, Brucie | Minuteman Bikeway 25th Anniversary Committee | | | |
| Morgan-Wu, Sarah | Commission for Arts and Culture (ACAC), 2023 | Boards & Commissions | | |
| Morgan, Jane P. | Vice Chair, School Committee, 2027 | Boards & Commissions, Town Manager | (781) 777-2776 | jmorgan@arlington.k12.ma.us |
| Morgan, Jane | Budget Revenue Task Force, School Committee | | | |
| Morgan, Jane | Long Range Planning Committee | | | |
| Morgan, David | Open Space Committee, Planning Department | | | |
| Morgan, David | Clean Energy Future, Conservation Agent | | | |
| Morgan, David | Environmental Planner/Conservation Agent | Conservation, Planning | (781) 316-3012 | dmorgan@town.arlington.ma.us |
| Morales, Carlos | Civilian Police Advisory Board Study Committee, Envision Arlington Diversity Task Group | | | |
| Moore, Christopher | Town Meeting Procedures Committee | Boards & Commissions, Town Manager | | |
