| Term | Full Form | Category |
|---|---|---|
| HAAT | Handheld Antenna Array Testbed | Others |
| HAAT | Hawkesbury Artists and Artisans trail | Others |
| HAAT | Health Accounts Analysis Tool | Others |
| HAAT | Heat And Air Treatment | Others |
| HAAT | Height Above Average Terrain | Others |
| HAAT | Human Activity Assistive Technology | Others |