Hz
| Acronym | Definition |
|---|---|
| Hz | Hertz (formerly cycles per second) |
| Hz | Hazard |
| Hz | Hazardous (Material) |
| Hz | Haze (aviation meteorology) |
| Hz | Hangzhou (China) |
| Hz | Horizons (game) |
| Hz | Herpes Zoster (skin disease) |
| Hz | Habitable Zone |
| Hz | Hot Zone |
| Hz | Hydrazine Sulfate |
| Hz | Horde Zla (supporters of Football Club Sarajevo) |
| Hz | Hrvatske Željeznice (Croatian Railways) |
| Hz | Human Zone |
| Hz | Hispazone (Spanish computer website) |
| Hz | Horizons: Empires of Istaria |