| Acronym | Definition |
|---|
| NAFI | National Association of Flight Instructors |
| NAFI | North American Family Institute (juvenile corrections) |
| NAFI | National Association of Fire Investigators |
| NAFI | Nueva Arquitectura Financiera Internacional (Spanish: New International Financial Architecture) |
| NAFI | Navy - Air Force Interface (for Electronic Document Access) |
| NAFI | Nonappropriated Funds Instrumentalities |
| NAFI | National Association of Fraud Investigators |
| NAFI | Naval Avionics Facility, Indianapolis |
| NAFI | Naval Air Fighting Instructions (US Navy) |
| NAFI | National Association of Forest Industries Ltd (Australia) |