| Acronym | Definition |
|---|
| NHSG | Non-High School Graduate(s) |
| NHSG | National Health Statistics Group |
| NHSG | New Home Stakeholder Group (Fort Collins, Colorado) |
| NHSG | Non-Hydrolytic Sol-Gel |
| NHSG | New Hampshire Sea Grant |
| NHSG | Natural History Society of Glasgow |
| NHSG | Network Hardware Support Group |
| NHSG | New Hampshire Seacoast Greenway (trail) |
| NHSG | New Hampshire Stable Guide |
| NHSG | Non-Honoring of a Sovereign Guarantee |
| NHSG | Normal Human Serum Gamma-globulin |
| NHSG | New Hampshire Society of Genealogists |
| NHSG | Native History Studies Group (Canada) |
| NHSG | New Hampshire State Guard |
| NHSG | New Hope Support Group |
| NHSG | New Hampshire Ski Group |
| NHSG | Natural Hygiene Support Group |