| Acronym | Definition |
|---|
| RAU | Recurrent Aphthous Ulcer (medical disorder) |
| RAU | Register in Use Already |
| RAU | Rand Afrikaans University (South Africa) |
| RAU | Received and Understood |
| RAU | Red Académica Uruguaya (Spanish: Uruguayan Academic Network; Montevideo, Uruguay) |
| RAU | Rajendra Agricultural University (India) |
| RAU | République Arabe Unie (French: United Arab Republic) |
| RAU | Randse Afrikaanse Universiteit |
| RAU | Routing Area Update (GPRS) |
| RAU | Radio Access Unit |
| RAU | Remote Access Unit |
| RAU | Remote Acquisition Unit |
| RAU | Regionales Ausbildungszentrum Au |
| RAU | Regional Administrative Unit |
| RAU | Resource Allocation Unit |
| RAU | Relay Access Unit (Hekimian) |
| RAU | Rand Academic University |
| RAU | Rand Academic University (South Africa) |
| RAU | Record Announcement Unit |