HAAB
| Acronym | Definition |
|---|---|
| HAAB | Herzogin Anna Amalia Bibliothek (Duchess Anna Amalia Library, Weimar, Germany) |
| HAAB | Hypo Alpe-Adria-Bank (Italy) |
| HAAB | Heparin-Associated Antiplatelet Antibody |
| HAAB | Hispanic Affairs Advisory Board (Miami, FL) |
| HAAB | Housing Authority of Abbeville (Abbeville, LA) |