| Schlichtman, Paul | Building Committee (PTBC), School Committee Liason | | | |
| Smith, Scott | Bicycle Advisory Committee (ABAC), 6/30/2025 | | | |
| Speare, Amy | High School Building Committee, Community Member | | | |
| Shoemaker, Linda | Minuteman Bikeway 25th Anniversary Committee | | | |
| Strosberg, Nat | Planning and Community Development Representative | | | |
| Shea, Elizabeth | Bicycle Advisory Committee Rep. | | | |
| Stark, Rachel | Walk Arlington Rep. | | | |
| Sawtelle, Steven | Veterans Council (1/31/2018) | | | |
| Slotnick, Larry | Zero Waste Arlington | | | |
| Sankalia, Priya | Zero Waste Arlington | | | |
| Sullivan, Mallory | CDBG Subcommittee, CDBG Administrator | | | Mjsullivan@town.arlington.ma.us |
| Susse, Jennifer | Finance Committee (Prct. 3, 2024) | | | |
| Susse, Jennifer | Budget Revenue Task Force, School Committee | | | |
| Samenfeld, Scott | Arlington Cultural Council, Publicity, 4/30/2022 | | | |
| Stark, Rachael | Sustainable Transportation, Walking in Arlington | | | |
| Shah, Kristine | Sustainable Transportation, HHS | | | |
| Stanton, Paul | AHNAP, Chamber of Commerce | | | |
| Skahan, Tracy | Cyrus E. Dallin Museum Trustees | | | |
| Smith, Stacie Nicole | Remote Participation Study Committee, Secretary | | | |
| Susse, Jennifer | Remote Participation Study Committee, Co-Chair | | | |
