| Russo, Anmarie | Veterans Council (6/30/2018) | | | |
| Ruggieri, Mike | Uncle Sam Committee | Boards & Commissions, Town Manager | | |
| Rateau, Corey | TAC, Police Rep., Traffic Unit | Boards & Commissions, Town Manager | | |
| Rademacher, Michael | Sustainable Transportation, Public Works | | | |
| Rateau, Corey | Sustainable Transportation, Police Department | | | |
| Rapp, William | Semiquincentennial Committee, At-large, Select Board | | | |
| Revilak, Stephen | Redevelopment Board (9/22/2028) | Planning | | srevilak@town.arlington.ma.us |
| Rateau, Corey | Police Department Rep. | | | |
| Ratiner, Steven | Poet Laureate Committee, former Poet Laureate | Boards & Commissions, Town Manager | | |
| Rateau, Corey | Parking Advisory Committee, Police Traffic Division | Boards & Commissions, Town Manager | | |
| Rothenberg, Jennifer | Park & Recreation Commission, 2021 | | | jrothenberg@town.arlington.ma.us |
| Richter, Wendy | Open Space Committee, Co-Chair, Arlington Redevelopment Board Designee | | | |
| Revilak, Stephen | Master Plan Update Advisory Committee | | | |
| Richter, Wendy | Master Plan Implementation Committee | Boards & Commissions | | |
| Radochia, Bob | Master Plan Advisory Committee | Boards & Commissions, Town Manager | | |
| Richter, Wendy | Master Plan Advisory Committee | Boards & Commissions, Town Manager | | |
| Rateau, Corey | Mass Ave/Appleton Design Review Committee, Police Department | | | |
| Roman, Joan | Local Emergency Planning Committee, Public Information Officer | Boards & Commissions, Town Manager | | |
| Rademacher, Michael | Local Emergency Planning Committee, DPW Director | Boards & Commissions, Town Manager | | |
| Raymond, Richard | Local Emergency Planning Committee, Armstrong | Boards & Commissions, Town Manager | | |
