| Rank | Abbreviation | Meaning |
|---|
| ***** | HSAP | High School Assessment Program
| |
| **** | HSAP | Hermosillo Stamping Assembly Plant
| |
| **** | HSAP | Hawaii State Association of Parliamentarians
| |
| **** | HSAP | Health Systems and Policy
| |
| **** | HSAP | Hanford Seismic Assessment Program
| |
| **** | HSAP | History of Statewide Assessment Program
| |
| **** | HSAP | Housing Support for the Aged Program
| |
| **** | HSAP | Herring Sperm-Activating Protein
| |
| **** | HSAP | Homeland Security Assistance Program
| |
| **** | HSAP | Hydropower Sustainability Assessment Protocol
| |
| *** | HSAP | High School Achievement Program
| |
| *** | HSAP | High School Allotment Program
| |
| *** | HSAP | Hellenic Society of Animal Production
| |
| ** | HSAP | Home School Assistance Program
| |
| ** | HSAP | Heme Spectral Analysis Program
| |
| ** | HSAP | Human serum amyloid P component
| |
| ** | HSAP | High School Apprenticeship Program
| |
| * | HSAP | Hospital Service Areas for Pediatrics
| |
| * | HSAP | Health Science Analysis Project
| |
| * | HSAP | High School Admission Process
| |
| * | HSAP | Heat Stable Alkaline Phosphatase
| |
| * | HSAP | health service augmentation program
| |
| * | HSAP | High School Apprentice Program
| |
| * | HSAP | Home Safety Awareness Programs
| |
| * | HSAP | Honors Student Advisory Panel
| |