| Acronym | Definition |
|---|
| NACAA➣National Association of Clean Air Agencies (Washington, DC) |
| NACAA➣National Association of Consumer Agency Administrators |
| NACAA➣National Association of County Agricultural Agents |
| NACAA➣National Association of Community Action Agencies (Washington, DC; founded in 1982) |
| NACAA➣National Acoustical Contractors Association of America |
| NACAA➣National Australian Convention of Amateur Astronomers Inc. (est. 1967; Australia) |
| NACAA➣National Association of Computer Assisted Analysts |