ARDD
| Acronym | Definition |
|---|---|
| ARDD | Alberta Renewable Diesel Demonstration (Canada) |
| ARDD | Acadiana Regional Development District (Louisiana) |
| ARDD | Agriculture and Rural Development Department (various locations) |
| ARDD | Animal Resources Development Department (India) |
| ARDD | Automatic Roller Detent Decoupler (aviation; helicopters) |
| ARDD | Auxiliary Repair Dry Dock |