- ZAS stands for Zombie Apocalypse Survivalists
- ZAS stands for Zymosan-Activated Serum (biomedicine)
- ZAS stands for Zambia African Safari (tourism company)
- ZAS stands for Zentrale Anzeigen Statistik (German: Central Ad Statistics; Association of German Magazine Publishers)
- ZAS stands for Zylinder Abschaltung System (German: Cylinder Deactivation System; automotive engineering)
- ZAS stands for Zero Access Storage
- ZAS stands for Zone Audio System (stereo sound)
- ZAS stands for Zone per l’Ammassamento dei Soccorsi
ZAS