GZS
| Acronym | Definition |
|---|---|
| GZS | Gospodarska Zbornica Slovenije |
| GZS | Gesellschaft Fuer Zahlungssysteme (German credit card processor) |
| GZS | Gasilska Zveza Slovenije (Slovenian: Fire Association of Slovenia) |
| GZS | Gesellschaft Zum Schutz von Wasser, Boden und Luft (German: Society for Protection of Water, Soil and Air) |
| GZS | Gesundheits Zentrum Serach (German: Health Center Serach; est. 1999; Esslingen, Germany) |
| GZS | Ground Zero System (band) |