| Munsey, James | Central School Feasibility Study Committee | Boards & Commissions | | |
| Mayer, Leslie | Community Preservation Act Committee, Park & Recreation Commission | Town Manager | | |
| Mahon, Diane M. | School Enrollment Task Force, Select Board | Town Manager | | DMahon@town.arlington.ma.us |
| Magee, Alex | Capital Planning Committee, Deputy Town Manager/Finance Director | | | |
| Mann, Dana | Audit Advisory Committee, Acting Director of Assessors | Town Manager | | |
| Magee, Alex | Audit Advisory Committee, Deputy Town Manager | Town Manager | | |
| Michele, Hassler | Cemetery Commission, (6/2025) | | | |
| McCarthy, Bill | High School Building Committee, AHS Assistant Principal | | | |
| Mason, Michael | High School Building Committee, School Chief Financial Officer | | | |
| McCabe, Charlie | Minuteman Bikeway 25th Anniversary Committee | | | |
| McDonnell, Andrew | Minuteman Bikeway 25th Anniversary Committee | | | |
| Moulton, Brucie | Minuteman Bikeway 25th Anniversary Committee | | | |
| Mahon, Diane | CDBG Subcommittee, Select Board | | | |
| Maxtutuis, Jeff | Transportation Advisory Committee Rep. | | | |
| Mirak, Jill | Parking Advisory Committee, Chamber of Commerce | | | |
| Moulton, Brucie | Municipal Vulnerability Preparedness, Citizen | | | |
| Milan, Charlotte | Municipal Vulnerability Preparedness, Recycling Coordinator | | | |
| 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 | | |
