| Acronym | Definition |
|---|
| MNCA | Model Nonprofit Corporation Act (model legislation) |
| MNCA | Mid-Nebraska Community Action |
| MNCA | Micromineralogists of the National Capital Area |
| MNCA | Michigan Nonprofit Corporation Act |
| MNCA | Mason Neck Citizens Association (Mason Neck, VA) |
| MNCA | Multilayer Network Configuration Algorithm |
| MNCA | Maximum Normalized Cable Attenuation |
| MNCA | Movement for the National Congress of Afghanistan (conference) |
| MNCA | Moncton Northeast Construction Association, Inc. |
| MNCA | Midtown North Community Association (Memphis, TN) |