| Acronym | Definition |
|---|
| ENAC | Entidad Nacional de Acreditación (Spanish: Entity National Accreditation) |
| ENAC | Ecole Nationale de l'Aviation Civile |
| ENAC | Ente Nazionale per l'Aviazione Civile (Italy) |
| ENAC | Epithelial Sodium Channel |
| ENAC | Environnement Naturel, Architectural et Construit (School of Architecture, Civil and Environmental Engineering; Lausanne, Switzerland) |
| ENAC | Every Nook and Cranny |
| ENAC | Empresa Nacional de Almacenamiento y Comercialización (Spaish) |
| ENAC | Environmental Attribute Code |
| ENAC | Enron North America Corp. (Houston, TX) |
| ENAC | École de l'Aviation Civile |
| ENAC | Expanded National Agency Check |
| ENAC | Energetic Neutral Atom Camera |
| ENAC | Equipage Not equipped with Alarm Cutoff |
| ENAC | Early Notification and Assistance Convention |
| ENAC | Engineering Network Administration Center (AT&T) |
