| Parseghian , Wayne | Constable | | (617) 620-4282 | wparseghian@msn.com |
| Peleg Mazor, Dori | Appointed by Select Board | Town Manager | | |
| Perry, Fiona | LGBTQIA+ Rainbow Commission, 2026 | Boards & Commissions | | |
| Persson, Rebecca | CDBG Subcommittee, Resident | | | |
| Pescatore, Lori | Youth/Young Adult Study Committee, Board of Youth Services Designee | | | |
| Pescatore, Lori | Board of Youth Services | Boards & Commissions | | |
| Phelps, Judi | Post Employment Medical Benefits Committee | Boards & Commissions, Town Manager | | |
| Phillips, Emma | Youth/Young Adult Study Committee, Arlington Student, Moderator Designee | | | |
| Pierce, Judson | High School Building Committee, former School Committee Member | | | |
| Pierce, Laura | Board of Youth Services, 2021 | | | |
| Popova, Marina | Tree Committee, 01/31/2026 | | | |
| Preston, Jo Anne | Community Preservation Act Committee, Arlington Housing Authority | Town Manager | | |
| Prokosch, Arthur | Master Plan Update Advisory Committee | Town Manager | | |
| Quinlan, Stephen | Library Board of Trustees, Chair, 06/2026 | Boards & Commissions | | |
| Quinlan, Stephen J. | Youth/Young Adult Study Committee, Library Board of Trustee Designee | | | |
| Quinn, Michael | Council on Aging, Chair, 2024 | | | |
| Rademacher, Michael | AHNAP, Director of Public Works | | | |
| Rademacher, Michael | Sustainable Transportation, Public Works | | | |
| Rademacher, Michael | Local Emergency Planning Committee, DPW Director | Boards & Commissions, Town Manager | | |
| Rademacher, Michael | Building Committee (PTBC), Superintendent of Schools designee | | | |
