| Abbreviation | Definition |
|---|---|
| NDAI | National Diabetes Association, Inc. |
| NDCA | North Dakota Counseling Association |
| NDIP | National Diabetes Improvement Project |
| NDIP | National Disability Information Project |
| NDKC | North Dakota Kids Count |
| NDNRT | North Dakota Natural Resources Trust |
| NDRI | National Dairy Research Institute |
| NDRI | National Development and Research Institutes |
| NDRI | National Disease Research Interchange |
| NDRI | National Drug Research Institute |
| NDSA | National Disability Sports Alliance |
| NDSA | North Dallas Alumni Chapter of Delta Sigma Theta |
| NDSC | National Down Syndrome Congress |
| NDSO | National Down Syndrome Organization |
| NDSS | National Down Syndrome Society |
| NDST | National Diabetes Support Team |
| NDTA | Neuro-Developmental Treatment Association |
| NDVH | National Domestic Violence Hotline |
| NEAC | National Episcopal Aids Coalition |
| NEADS | National Education for Assistance Dog Services |