| Advisory Board of Health | |
| Advisory Commission on Coastal Waters | |
| Advisory Committee on Sustainability | |
| Architectural Review Board | |
| ARPA | |
| Beautification Commission | |
| Blight Review Board | |
| Board of Assessment Appeals | |
| Board of Ethics | |
| Board of Finance | |
| Board of Selectmen | |
| Commission on Aging | |
| Darien Housing Authority | |
| Darien TV 79 Advisory Board | |
| Environmental Protection Commission | |
| Five Mile River Commission | |
| Great Island Advisory Committee | |
| HHR Building Committee | |
| Human Services Commission | |
| Mental Health Task Force | |
| Monuments & Ceremonies Commission | |
| Operations Planning Committee | |
| Ox Ridge Elementary School Building Committee | |
| Parks & Recreation Commission | |
| Pension Board | |
| Planning & Zoning Commission | |
| Police Commission | |
| PRC Invasives Remediation Working Group | |
| PRC Pear Tree Point Working Group | |
| PRC Playground Working Group | |
| PRC Weed Beach Meadow and Trail Working Group | |
| Representative Town Meeting | |
| RTM - Education Committee | |
| RTM - Finance & Budget Committee | |
| RTM - Parks & Recreation Committee | |
| RTM - Planning, Zoning & Housing Committee | |
| RTM - Public Health & Safety Committee | |
| RTM - Public Works Committee | |
| RTM - Rules Committee | |
| RTM - TGS&A Committee | |
| Sewer Commission | |
| Youth Commission | |
| Zoning Board of Appeals | |