ADDA
| Acronym | Definition |
|---|---|
| ADDA | Attention Deficit Disorder Association |
| ADDA | American Design Drafting Association |
| ADDA | Anxiety Disorders Association of America (Silver Spring, MD) |
| ADDA | Attention Deficit Disorder in Adults |
| ADDA | Australian Database Development Association |
| ADDA | Associazione per la Difesa dei Diritti degli Animali |
| ADDA | American Dream Downpayment Act |
| ADDA | Assistant District Director for Adjudications |
| ADDA | Active Defense Decision Aid |
| ADDA | Analogue Digital Digital Analogue |