| Byrnes, Jim | Arlington Committee on Tourism & Economic Development | | | |
| Brunel, Todd | Arlington Cultural Council, 1/31/2024 | Town Manager | | |
| Bedard, Kristin | Arlington Cultural Council, 10/30/2025 | Town Manager | | |
| Brazile (D), Juli | Board of Registrars, Chair | Clerk | | |
| Betlyon (R) , Rebecca | Board of Registrars, 2025 | Boards & Commissions | | |
| Bryant, Kevin | Human Rights Commission, 2024 | Boards & Commissions, Town Manager | | |
| Bell, Margie | Zero Waste Arlington | Boards & Commissions, Town Manager | | |
| Bowes, Robert | Semiquincentennial Committee, At-large, Select Board | | | |
| Broaddus, Vaden | Capital Planning Committee, Secretary | | | |
| Banks, Les | Veterans Council | | | |
| Bradford, Angelique | Master Plan Update Advisory Committee | Town Manager | | |
| Boyd, Tristan | Master Plan Update Advisory Committee | Town Manager | | |
| Benson, Eugene | Master Plan Update Advisory Committee | Town Manager | | |
| Baker, Olga | Arlington Committee on Tourism & Economic Development | Boards & Commissions | | |
| Bloch, Justine | Board of Youth Services, Chair | Boards & Commissions | | |
| Barnicle, Kristen | Board of Youth Services, 2019 | Boards & Commissions | | |
| Beauchemin, Crystal | Human Rights Commission, 2025 | Boards & Commissions | | |
| Bauer, Kristen | Human Rights Commission, 2024 | Boards & Commissions | | |
| Bradley, Tara | Finance Committee, Executive Secretary | | | |
| Bliss, Peggy | Finance Committee (Prct. 16, 2026) | Boards & Commissions, Town Manager | | |
