| Acronym | Definition | 
|---|
| HSZ➣High Security Zones | 
| HSZ➣Hydrate Stability Zone (geology) | 
| HSZ➣Heeressportzentrum (Austria) | 
| HSZ➣Hrvatski Savez Zadruga (Croatian: Croatian Association of Cooperatives) | 
| HSZ➣Hellenic Subduction Zone (geology) | 
| HSZ➣High Signal Zones (neurology) |