| Dennis, Greg | Election Modernization Committee, Chair | Town Manager | | gdennis@alum.mit.edu |
| Diggins, Lenard | Election Modernization Committee, Select Board | | | ldiggins@town.arlington.ma.us |
| DeStefanis, Giovanna | Election Modernization Committee, Youth Appointee | | | |
| Dutra, Samantha | Equal Opportunity Advisory Committee | | | |
| Deshler, Christine | Finance Committee, Chair (Prct. 19, 2024) | | | |
| Diggins, Leonard | Housing Plan Implementation Committee, Select Board | Planning | | |
| Dunn, Daniel J. | Information Technology Advisory Committee | Boards & Commissions, Town Manager | | |
| Danizio, John | Information Technology Advisory Committee | Boards & Commissions, Town Manager | | |
| Delmolino, Adam | Library Board of Trustees, 01/2027 | Boards & Commissions | | |
| DeCourcey, Stephen | Local Emergency Planning Committee, Select Board | | | |
| DeCourcey, Steve | Long Range Planning Committee | | | |
| DiNoto, Anne | Mass Ave/Appleton Design Review Committee, Resident | | | |
| Dunham, Rachel | Master Plan Update Advisory Committee | Town Manager | | |
| Dunn, Dan | Minuteman Bikeway 25th Anniversary Committee | | | |
| Deck , Stewart | Poet Laureate Committee, School Designee | Boards & Commissions | | |
| Diggins, Lenard | Poet Laureate Committee, Town Manager Designee | Boards & Commissions, Town Manager | | |
| Diggins, Lenard | Select Board, 2026 | | (617) 863-6433 | LDiggins@town.arlington.ma.us |
| DeCourcey, Stephen W. | Select Board, Chair, 2025 | | (781) 643-7291 | SDeCourcey@town.arlington.ma.us |
| Devney, Darcy | Sustainable Transportation, Disability Commission | | | |
| Diggins, Lenard | Sustainable Transportation, TAC | | | |
