| Acronym | Definition |
|---|
| DNU➣Do Not Understand (used in reviewing academic papers) |
| DNU➣Digital Network Unit |
| DNU➣Do Not Use |
| DNU➣Decreto de Necesidad y Urgencia (Argentina) |
| DNU➣Dr. Nausch Unternehmensberatung (Germany) |
| DNU➣Dansk Naturist Union (Danish: Danish Naturist Union) |
| DNU➣Delta Nu Alpha |
| DNU➣Department of Natural Unicorns (fictional; Lake Superior State University; Michigan) |
| DNU➣Dyspepsie Non Ulcéreuse (French: Nonulcer Dyspepsia; gastroenterology) |
| DNU➣Deez Nuts University |
| DNU➣Dead from the Neck Up |