HPZ
| Acronym | Definition |
|---|---|
| HPZ | High Pressure Zone |
| HPZ | Hidden Palace Zone (gaming, Sonic 2) |
| HPZ | Helicopter Protected Zone |
| HPZ | Health Protection Zone (Russia) |
| HPZ | Hrvatska Partija Znanja (Croatian: Croatian Party of Knowledge) |
| HPZ | Hydrological Protection Zone (UK) |