| Acronym | Definition |
|---|
| HZS➣Hogere ZeevaartSchool (Dutch type of maritime academy) |
| HZS➣Hrvatski Zrakoplovni Savez (Croatian Aeronautical Federation) |
| HZS➣Hasseltse Zwemvereniging Spartacus (Dutch: Flemish Swimming Federation) |
| HZS➣Hasicsky Zachranny Sbor (Czech: Fire Brigade) |
| HZS➣Honolulu Zoo Society (est. 1969; Honolulu, HI) |
| HZS➣Hellenic Zoological Society (est. 1980; Athens, Greece) |