| Acronym | Definition |
|---|
| WNCA➣Western North Carolina Alliance (environmental action group) |
| WNCA➣Waratah National Cat Alliance (Australia) |
| WNCA➣World New Chess Association |
| WNCA➣Wissahickon Neighbors Civic Association (Philadelphia, PA) |
| WNCA➣Woodcrest Neighborhood Civic Association (Texas) |