| Acronym | Definition |
|---|
| NACA | National Advisory Committee for Aeronautics |
| NACA | Neighborhood Assistance Corporation of America |
| NACA | Network of Aquaculture Centres in Asia-Pacific |
| NACA | National Association of Consumer Advocates |
| NACA | National Association of Campus Activities |
| NACA | National Animal Control Association |
| NACA | National Action Committee on AIDS (Nigeria) |
| NACA | National Advisory Council on Aging |
| NACA | North Australian Canine Association |
| NACA | National Air Carrier Association |
| NACA | National Agricultural Chemicals Association |
| NACA | National Association of Cost Accountants |
| NACA | Nunavut Arts and Crafts Association (Canada) |
| NACA | National Association for Cancer Awareness (Oman) |
| NACA | National Association of County Administrators |
| NACA | North American Cruiser Association |
| NACA | New American Consolidators Association |
| NaCA | National Connections Academy (Baltimore, MD) |
| NACA | National Association of Chiropractic Attorneys |
| NACA | National Association of Christian Athletes |
| NACA | North Austin Civic Association (Texas) |
| NACA | National Association of Chinese-Americans |
| NACA | North American Crappie Association |
| NACA | National Academy of Chiropractic Assistants |
| NACA | North American Currach Association |
| NACA | North American Coastal Alliance |
| NACA | Network Access Control Authority |
| NACA | Native American Casino Association |
| NACA | North American Corriente Association |
| NACA | National Association of Credit Analysts (Washington, DC) |
| NACA | Non-Advocate Cost Assessment (US Air Force) |
| NACA | National Agency for the Control of AIDS (Nigeria) |
| NACA | National Association of Collection Agents (Washington, DC) |