| Acronym | Definition |
|---|
| NHA➣Nha Trang, Vietnam (airport code) |
| NHA➣National Hydrogen Association |
| NHA➣Nursing Home Administrator |
| NHA➣National Housing Authority (Philippines) |
| NHA➣National Hockey Association (Canada) |
| NHA➣National Highway Authority (Pakistan) |
| NHA➣Nantucket Historical Association |
| NHA➣National Highway Authority |
| NHA➣National Health Accounts |
| NHA➣National Housing Act (of 1938; Canada) |
| NHA➣New Hope Academy (various locations) |
| NHA➣National Humanities Alliance |
| NHA➣National Healthcareer Association |
| NHA➣National Heritage Area (NPS) |
| NHA➣National Heritage Academies |
| NHA➣Non-Human Animal |
| NHA➣Navajo Housing Authority |
| NHA➣Next Higher Assembly |
| NHA➣Natural History Association |
| NHA➣Nashville Humane Association |
| NHA➣Naval Helicopter Association |
| NHA➣Nomura Holding America (Nomura Securities Co., Ltd.) |
| NHA➣National Hay Association (St. Petersburg, Fl) |
| NHA➣National Health Access |
| NHA➣Natural History Area |
| NHA➣Next Hop Array (computer networking) |
| NHA➣New Housing Authority (finance) |
| NHA➣National Hop Association (UK) |
| NHA➣Nice Hand All (card games) |
| NHA➣Non-Hazardous Area |
| NHA➣Non Hostile Action |
| NHA➣Northern Heights Alliance |
| NHA➣National Handbag Association |
| NHA➣National Hacker Association |
| NHA➣Neuchatel Hier Automobile (French; automobile club; Switzerland; est. 1977) |