| ADDA | Advanced Data Dictionary Architect 
| Others |
| ADDA | Aiken Downtown Development Association
| Others |
| ADDA | Alabama Drug Discovery Alliance
| Others |
| ADDA | American Design Drafting Association
| Others |
| ADDA | American Drafting and Design Association
| Others |
| ADDA | American Dream Downpayment Act
| Others |
| ADDA | Analog Digital Digital Analog
| Others |
| ADDA | Analogue Digital Digital Analogue
| Others |
| ADDA | Analogue to Digital Digital to Analogue
| Others |
| ADDA | Anti Distracted Driving Act
| Others |
| ADDA | Asociacion Defensa Derechos Animal
| Others |
| ADDA | Assistant District Director for Adjudications
| Others |
| ADDA | Association of Deputy District Attorneys
| Others |
| ADDA | At the Design Drafter AcronymAttic
| Others |
| ADDA | At the Design Drafter Advertisement
| Others |
| ADDA | Athena Digital Design Agency
| Others |
| ADDA | Atlanta Decatur Dart Association
| Others |
| ADDA | Attention Deficit Disorder Association
| Others |
| ADDA | Attention Deficit Disorders Association
| Others |
| ADDA | Automated Driving Darmstadt
| Others |
| ADDA | Automatic Domain Decomposition Algorithm
| Others |