| Acronym | Definition |
|---|
| ZAA | Zone d'Amélioration des Affaires (French: Business Improvement Area; Canada) |
| ZAA | Zoning Amendment Application |
| ZAA | Zone of Available Assistance (ecology) |
| ZAA | Zoroastrian Association of Alberta (Alberta, Canada) |
| ZAA | Zoological Association of America (est. 2005; Punta Gorda, FL) |
| ZAA | Zollern Alb Award (Germany) |
| ZAA | Zama Alumni Association (Zama American High School; Japan; US DoD) |
| ZAA | Zeeman Atomic Absorption |
| ZAA | Zona Antigen activity (enzymes) |
| ZAA | Zone of Advanced Achievement |
| ZAA | Zoning Agreement Amendment (city planning; various locations) |