| Acronym | Definition |
|---|
| AISU➣American Indian Student Union (various locations) |
| AISU➣Arab Iron and Steel Union |
| AISU➣Advanced International Studies Unit (College Park, MD) |
| AISU➣Aboriginal and Islander Support Unit (est. 1996; Australia) |
| AISU➣Artificial Intelligence Student Union |
| AISU➣Advanced Integrated Sight Unit |