| Acronym | Definition |
|---|
| NHCA | National Hearing Conservation Association |
| NHCA | Nice Hockey Côte d'Azur (French hockey club) |
| NHCA | Nebraska Health Care Association |
| NHCA | Nevada Health Care Association |
| NHCA | New Hampshire Citizens Alliance |
| NHCA | National Hispanic Construction Association (Falls Church, VA) |
| NHCA | Norwood/Holabird Community Association |
| NHCA | Natural Health Care Alliance (Australia) |
| NHCA | Noord-Hollands Centrum voor Amateurtheater |
| NHCA | National Hill Climb Association (United Kingdom) |
| NHCA | National Healthcare Collectors Association |
| NHCA | New Hope Christian Academy (Arizona) |
| NHCA | Naples Health Care Associates (Florida) |
| NHCA | New Hampshire Chess Association |
| NHCA | North Heights Lutheran Church |
| NHCA | North Hills Classical Academy (Michigan) |
| NHCA | New Hampshire Coaches' Association |
| NHCA | Naperville Health Care Associates (Illinois) |
| NHCA | New Hampshire Cemetery Association |
| NHCA | Nebraska Horse Clubs Association, Inc. |
| NHCA | North Highland Christian Academy (Georgia) |
| NHCA | Neighborhood Health Care Alliance (New York state) |
| NHCA | New Hampshire Chiropractic Association, Inc. |