| Abbreviation | Definition |
|---|---|
| HAMA | Hospitality Asset Managers Association |
| HAMAC | Hellenic Association Of Mobile Application Companies |
| HAMAC | Hellenic Association of Mobile Applications Companies |
| HAMU | Humanist Action for Human Rights (Norwegian Humanist Association) |
| HAN | Hospitality Association Namibia |
| HAN | Hospitality Association of Namibia |
| HAN | Hotel Association of Nepal |
| HANJ | Hemophilia Association of New Jersey |
| HAOA | HIPAA Association Of America |
| HAPD | Helderberg Association for Persons with Disabilities |
| HAPL | Houston Association for Professional Landmen |
| HAPL | Houston Association of Professional Landmen |
| HAPO | Hawaii Association of Professional Organizers |
| HAPPA | Horse And Pony Protection Association |
| HAPPA | Horses and Ponies Protection Association |
| HAPS | Hawthorn Association of Parents and Supporters |
| HAQ | Hardware Association of Queensland |
| HARA | Huntsville Area Rocketry Association |
| HASA | Hamline African Student Association |
| HASA | Harnett Area Shag Association |