| Acronym | Definition |
|---|
| NHSD➣North Hills School District (Pittsburgh, PA) |
| NHSD➣New Hope-Solebury School District (Pennsylvania) |
| NHSD➣National Health Service Direct (UK) |
| NHSD➣National Healthy Schools Day (Healthy Schools Network, Inc.) |
| NHSD➣New Haven School District (California) |
| NHSD➣National Heroscape Day (game) |