AUN
| Acronym | Definition |
|---|---|
| AUN | American University of Nigeria |
| AUN | Acorn Universal Networking |
| AUN | Aperture Users Network (Apple-based photography) |
| AUN | Access Utah Network (disability resource; Salt Lake City, UT) |
| AUN | Aire Urbaine Natation Nord Franche Comté (French: Urban Area Swimming North Franche-Comte; Franche-Comte, France) |
| AUN | Assiut University Network (Assiut University; Egypt) |
| AUN | Alianza por la Unidad National |
| AUN | NUS-ASEAN University Network |