| Acronym | Definition |
|---|
| NHDA | National Housing Development Authority (Sri Lanka) |
| NHDA | Nederlands Historisch Data Archief (Dutch: Netherlands Historical Data Archive) |
| NHDA | National Hydrocarbons Data Archive (UK) |
| NHDA | National Hand Dance Association |
| NHDA | New Hampshire Department of Agriculture |
| NHDA | Nebraska Housing Developers Association |
| NHDA | New Hampshire Dietetic Association (Manchester, NH) |
| NHDA | Nursing Home Diversion Act |
| NHDA | National Hunting Dog Association |
| NHDA | Natural History Development Award |
| NHDA | National Huntington's Disease Association |
| NHDA | National Housing Data Agreements (Australia) |
| NHDA | New Hampshire Dealers Association |
| NHDA | New Hampshire Dance Alliance |
| NHDA | Nationwide Hail Damage Appraisals |
| NHDA | National Highway Development Authority (India) |
| NHDA | New Haven Dental Association |
| NHDA | National Housing Development Association |