| Copithorne, Bill | TAC, Public Works Rep | Boards & Commissions, Town Manager | | |
| Copithorne , William | Public Memorial Committee | Town Manager | | |
| Copithorne, Interim Town Engineer, Bill | Mass Ave/Appleton Design Review Committee, Department of Public Works | | | |
| Costello, Chris | Cyrus E. Dallin Museum Trustees | Boards & Commissions, Town Manager | | |
| Cox, Nancy | Council on Aging, 2024 | | | |
| Cuff, Nicole | Commission for Arts and Culture, 6/2025 | | | |
| Curren, James | Municipal Vulnerability Preparedness, Captain Arlington Police | | | |
| Curro, Jr., Joseph A. | Budget Revenue Task Force, Select Board | Boards & Commissions, Town Manager | | |
| Curro, Jr., Joseph A. | School Enrollment Task Force, Select Board | Town Manager | | JCurro@town.arlington.ma.us |
| D'Angelo, Chris | Arlington Committee on Tourism & Economic Development, Vice Chair | | | |
| Danizio, John | Building Maintenance Comm | Boards & Commissions, Town Manager | | |
| Danizio, John | Information Technology Advisory Committee | Boards & Commissions, Town Manager | | |
| Davidson-Hernandez, Jennifer | Arlington Civilian Police Advisory Commission, 6/2027 | | | |
| Davison, Robert | AHNAP, Resident | | | |
| Davison, Thomas | Arlington Committee on Tourism & Economic Development, Treasurer | Boards & Commissions, Town Manager | | |
| Deakin, Michelle | Arlington Committee on Tourism & Economic Development | | | |
| Deck , Stewart | Poet Laureate Committee, School Designee | Boards & Commissions | | |
| DeCourcey, Mary | Board of Youth Services, 2017 | Boards & Commissions | | |
| DeCourcey, Stephen | Council on Aging, Select Board Liaison | | | |
| DeCourcey, Stephen | Local Emergency Planning Committee, Select Board | | | |
