| Acronym | Definition |
|---|
| HASL | Health and Safety Laboratory |
| HASL | Hot Air Solder Leveling |
| HASL | Hawaii Association of School Librarians (Honolulu, HI) |
| HASL | Huntsville Adult Soccer League (Huntsville, AL) |
| HASL | Handicap Awareness and Support League (Grants Pass, Oregon) |
| HASL | Historical Advanced Squad Leader (gaming) |
| HASL | Heart of America Softball League (Gladstone, MO) |
| HASL | Height Above Mean Sea Level |
| HASL | Harpoon Augmented Spares List (US DoD) |
| HASL | High Availability Systems Laboratory |
| HASL | High Assurance Software Laboratory |
| HASL | Hamilton Art Student League (Clinton, NY) |
| HASL | Heating Appliances and Spares Ltd (UK) |