HAU
| Acronym | Definition |
|---|---|
| HAU | Hellenic American Union |
| HAU | Haryana Agricultural University (India) |
| HAU | Holy Angel University (Philippines) |
| HAU | How About You? |
| HAU | Hanoi Architectural University |
| HAU | Hemagglutinating Unit |
| HAU | High Acuity Unit (healthcare) |
| HAU | Haugesund, Norway - Karmoy (Airport Code) |
| HAU | Host Attachment Unit |