| Acronym | Definition |
|---|
| ACSU➣Advanced (T-1) Channel Service Unit |
| ACSU➣Anti-Corruption and Security Unit (International Cricket Council) |
| ACSU➣Air Cooled Split Unit (ventillation) |
| ACSU➣American Cancer Society University |
| ACSU➣Association of Computer Science Undergraduates |
| ACSU➣American Conservative Student Union |
| ACSU➣Add-Compare-Select Unit |
| ACSU➣Adult Crisis Stabilization Unit |
| ACSU➣Antenna Configuration Switching Unit |
| ACSU➣Air Combat Support Unit (UK) |