| Acronym | Definition |
|---|
| AFU | All Fouled Up (polite form) |
| AFU | alt.folklore.urban (newsgroup) |
| AFU | Ami Firmware Update Utility |
| AFU | Award Flash Update Utility |
| AFU | Assistance Au Freinage D'Urgence |
| AFU | Atlanta Fire United (soccer club; Georgia) |
| AFU | Advanced Flying Unit (various locations) |
| AFU | Assistance Au Freinage d'Urgence (French: mechanical brake assist) |
| AFU | Azad Fikir Universiteti (Azerbaijani: Free Thought University) |
| AFU | Archaeoglobus Fulgidus |
| AFU | Accelerator Functional Unit |
| AFU | Association Foncière Urbaine (French: Urban Land Association) |
| AFU | Association Française d'Urologie |
| AFU | Age of First Use (substance abuse) |
| AFU | All Fired Up |
| AFU | Annual Follow-Up |
| AFU | Air Forces of Ukraine |
| AFU | Associazione Ferrarese Universitaria (Italian: Ferrara University Association; Ferrara, Italy) |
| AFU | Association Fraternité Universelle (French: Universal Brotherhood Association) |
| AFU | Atelier Fabrication Usinage (French: Machine Manufacturing Workshop) |
| AFU | American Families United |
| AFU | Ajinomoto Frozen Foods USA |
| AFU | Abingdon Film Unit (UK) |
| AFU | Air Freight Unit (Pakistan) |
| AFU | Archaeological Field Unit |
| AFU | Asset Freezing Unit (UK) |
| AFU | Airline Filter Unit |
| AFU | Assault Fire Unit |
| AFU | Approval for Use |
| AFU | Aggregate Function Unit |
| AFU | Archives for UFO (Unidentified Flying Object) Research (Sweden) |
| AFU | Automatic Fill Up (drill pipe float valves in well drilling) |
| AFU | Ammunition and Fire Unit |
| AFU | Active Force User (Lego Star Wars) |