| Rademacher, Michael | Disability Commission, 2024 | | | |
| Rademacher, Michael | Building Committee (PTBC), Superintendent of Schools designee | | | |
| Rademacher, Michael | Local Emergency Planning Committee, DPW Director | Boards & Commissions, Town Manager | | |
| Rademacher, Michael | Sustainable Transportation, Public Works | | | |
| Rademacher, Michael | AHNAP, Director of Public Works | | | |
| Radochia, Bob | Civilian Police Advisory Board Study Committee, Citizens Police Academy Graduate | | | |
| Radochia, Bob | Arlington Committee on Tourism & Economic Development | Boards & Commissions | | |
| Radochia, Bob | Arlington Committee on Tourism & Economic Development | | | |
| Radochia, Bob | Master Plan Advisory Committee | Boards & Commissions, Town Manager | | |
| Raia, PhD, Paul | Council on Aging, Associate | Boards & Commissions, Town Manager | | |
| Rapp, William | Semiquincentennial Committee, At-large, Select Board | | | |
| Rateau, Corey | Mass Ave/Appleton Design Review Committee, Police Department | | | |
| Rateau, Corey | TAC, Police Rep., Traffic Unit | Boards & Commissions, Town Manager | | |
| Rateau, Corey | Sustainable Transportation, Police Department | | | |
| Rateau, Corey | Parking Advisory Committee, Police Traffic Division | Boards & Commissions, Town Manager | | |
| Rateau, Corey | Police Department Rep. | | | |
| Ratiner, Steven | Poet Laureate Committee, former Poet Laureate | Boards & Commissions, Town Manager | | |
| Rawson, Sheila | Human Resource Board, 2018 | | (781) 643-6532 | |
| Raymond, Richard | Local Emergency Planning Committee, Armstrong | Boards & Commissions, Town Manager | | |
| Remy, Jordan | Finance Committee (Prct. 1, 2025) | | | |
