| Acronym | Definition |
|---|
| IFAR | International Foundation for Art Research (research organization for visual art works) |
| IFAR | Institute for Aging Research |
| IFAR | International Food Assistance Report |
| IFAR | International Fanconi Anemia Registry (research and support group) |
| IFAR | International Fund for Agricultural Research |
| IFAR | Interdisziplinäre Forschungsgruppe Abrüstung, Rüstungskontrolle und Risikotechnologien (German: Interdisciplinary Research Group on Arms Control and Disarmament) |
| IFAR | International Fund for Avian Research (bird support organization) |
| IFAR | Item Frequency Analysis Report |
| IFAR | Initial Fire Support Automation System |
| IFAR | International Forum for Aviation Research (Germany) |