| 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 | | |
| 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 | | | |
