ACAU
| Acronym | Definition |
|---|---|
| ACAU | Aironet Client Administration Utility |
| ACAU | Automatic Calling and Answering Unit |
| ACAU | Associazione Ciociara Allevatori Uccelli (Italian: Ciociara Bird Breeders Association) |
| ACAU | A Child Among Us (international child adoption agency) |
| ACAU | Automatic Calling/Answering Unit |