| Acronym | Definition |
|---|
| HSPP➣Human Subjects Protection Program |
| HSPP➣Health and Safety Partnership Program |
| HSPP➣Hutchinson Smoking Prevention Project (study) |
| HSPP➣Health Service Provider in Psychology |
| HSPP➣Hrvatski Sindikat Prometnih Pilota (Croatian: Croatian Union of Civil Pilots) |
| HSPP➣Hurricane Shore Protection Projects (US Army) |
| HSPP➣Hughes Science Pipeline Project (est. 1991; Barnard College; New York) |
| HSPP➣High Signal of the Posterior Pituitary |