| Acronym | Definition |
|---|
| ICNA➣Islamic Circle of North America |
| ICNA➣Infection Control Nurses Association |
| ICNA➣International Child Neurology Association (est. 1973) |
| ICNA➣Insurance Company of North America |
| ICNA➣Ingénieur du Contrôle de la Navigation Aérienne (French: Competition Engineering Control of Air Navigation) |
| ICNA➣Industrial Chemicals Notification and Assessment Act (Australia; 1989) |