| LeRoyer, Ann | Master Plan Implementation Committee | Boards & Commissions | | |
| Lau, Kin | Redevelopment Board, Vice Chair (1/31/2027) | Boards & Commissions | | KLau@town.arlington.ma.us |
| Lasker, Phil | Park & Recreation Commission, 2022 | Boards & Commissions, Town Manager | | |
| Lucarelli, Stephanie | Information Technology Advisory Committee | Boards & Commissions, Town Manager | | |
| LeRoyer, Ann | Master Plan Advisory Committee | Boards & Commissions, Town Manager | | |
| Leger, Colleen | Local Emergency Planning Committee, Director Health & Human Services | Boards & Commissions, Town Manager | | |
| Laube, Melissa | TAC, Pct. Rep. 8-14 | Boards & Commissions, Town Manager | | |
| Laube, Melissa | Parking Advisory Committee, Transportation Advisory Committee | Boards & Commissions, Town Manager | | |
| LaBau, Brian | Architect, At Large, 2025 | Boards & Commissions, Town Manager | | |
| Lau, Marisa | Senior Planner | Planning | (781) 316-3091 | mlau@town.arlington.ma.us |
| Luczai, Katie | Parking Advisory Committee, Planning | Town Manager | | |
