| Acronym | Definition |
|---|
| IFAS | Institute of Food and Agricultural Sciences |
| IFAS | Institute for First Amendment Studies |
| IFAS | Integrated Fixed Film Activated Sludge (wastewater treatment technology) |
| IFAS | Institut Français d'Afrique du Sud (French: French Institute of South Africa) |
| IFAS | Institut für Fluidtechnische Antriebe und Steuerungen (Institute for Fluid Power Drives and Controls; RWTH-Aachen, Germany) |
| IFAS | Institute for Food and Agricultural Standards (Michigan State University; East Lansing, MI) |
| IFAS | Internal Factors Analysis Summary (strategic management) |
| IFAS | Integrated Fund Accounting System |
| IFAS | Independent Fee Appraiser, Senior (National Association of Independent Fee Appraisers) |
| IFAS | Industrial Fund Accounting System |
| IFAS | International Foundation for Androgynous Studies, Inc. |