| Acronym | Definition |
|---|
| AHSI➣African Human Security Initiative |
| AHSI➣Alternative High School Initiative |
| AHSI➣Archivum Historicum Societatis Iesu (Latin; Italian journal) |
| AHSI➣Arabian Horse Society of Iowa |
| AHSI➣Arkansas History Summer Institute |
| AHSI➣American Academic and High School Institute (online education) |