IFNA
| Acronym | Definition |
|---|---|
| IFNA | International FidoNet Association |
| IFNA | International Federation of Nonlinear Analysts (Florida Institute of Technology; Melbourne, FL) |
| IFNA | International Federation of Nurse Anesthetists |
| IFNA | Interferon Alpha Gene |
| IFNA | International Forum of News Agencies |
| IFNA | Islamic Forum of North America |