| 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 | | |
| Barry, Charles | Historic Districts Commission, At-Large, 6/2026 | Boards & Commissions, Town Manager | | |
| Baldwin, David | Historic Districts Commission, Commissioner At-Large, 2025 | Boards & Commissions, Town Manager | | |
| Bayer, Paul | Information Technology Advisory Committee | Boards & Commissions, Town Manager | | |
| Band, Harris | Master Plan Advisory Committee | Boards & Commissions, Town Manager | | |
| Baron, Sheri | Master Plan Advisory Committee | Boards & Commissions, Town Manager | | |
| Bourassa, Eric | Master Plan Advisory Committee | Boards & Commissions, Town Manager | | |
| Barr, Joseph | Master Plan Advisory Committee | Boards & Commissions, Town Manager | | |
| Ballin, Jim | Zero Waste Arlington, Co-Chair | | | |
| Burden, Eliza | Tree Committee, 12/2025 | Boards & Commissions, Town Manager | | |
| Benyo, Julie | Utility Pole Working Group | Boards & Commissions, Town Manager | | |
| Bowes, Bob | Arlington Committee on Tourism & Economic Development, Chamber of Commerce | Boards & Commissions, Town Manager | | |
| Boucher, Denise | Local Emergency Planning Committee, APS | Boards & Commissions, Town Manager | | |
| Bishop, Karen | Board of Youth Services | Boards & Commissions, Town Manager | | |
| Baillieul, Pat | Council on Aging, 2022 | Boards & Commissions, Town Manager | | |
