| 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 |