| Acronym | Definition |
|---|
| ZAC | Zacatecas (Estado de México) |
| ZAC | Zacapa (Guatemala, territorial division) |
| ZAC | Zone d'Aménagement Concerté (French: Integrated Development Zone) |
| ZAC | Zero Administration Client |
| ZAC | Zion Adventure Company (Utah) |
| ZAC | Zamil Air Conditioners (Saudi Arabia) |
| ZAC | Zone for Autistic Children |
| ZAC | Zojirushi America Corporation |
| ZAC | Zwolsche Athletische Club (soccer team, Holland) |
| ZAC | Zero Administration Client (Network Associates) |
| ZAC | Zero Accident Culture (workplace safety program) |
| ZAC | Zone Advisory Committee (various locations) |
| ZAC | Zone d'Activité Commerciale |
| ZAC | Zero Auto-Correlation |
| ZAC | Zoar Activity Center |