ICAU
| Acronym | Definition |
|---|---|
| ICAU | International Consortium of ALEPH Users |
| ICAU | Instituto Cultural Anglo Uruguayo (Spanish: Anglo-Uruguayan Cultural Institute; Montevideo, Uruguay) |
| ICAU | International Civil Aviation University (various locations) |
| ICAU | Internet Criminal Activity Unit (Illinois Attorney General) |
| ICAU | Intracarotid Arterial Urokinase Therapy |
| ICAU | International Centre for Archaeology Underwater (Riverside, CA) |