| Acronym | Definition |
|---|
| NADD➣North America Diving Dogs (Midlothian, TX) |
| NADD➣National Association for the Dually Diagnosed |
| NADD➣National Alliance for Democracy and Development (Gambia) |
| NADD➣National Association of Diaconate Directors |
| NADD➣National Association of Deans and Directors of Schools of Social Work |
| NADD➣Nerd Attention Deficit Disorder |
| NADD➣National Association of Diemakers and Diecutters |