| Acronym | Definition |
|---|
| QDN➣Query Direct Number |
| QDN➣Quoi de Neuf (French: What's New) |
| QDN➣Quality Deficiency Notice |
| QDN➣Query Directory Number |
| QDN➣Quality Directors Network |
| QDN➣Quilt Design Northwest (Boring, OR) |
| QDN➣Quality Dentistry Network (various locations) |