| Acronym | Definition |
|---|
| IFE | Instituto Federal Electoral (México) |
| IFE | In-Flight Entertainment |
| IFE | Institutt For Energiteknikk (Institute for Energy Technology; Kjeller, Norway) |
| IFE | Institute for Energy Technology (Norway) |
| IFE | International Feed Expo (trade show) |
| IFE | International Franchise Expo |
| IFE | Immunofixation Electrophoresis |
| IFE | International Franchise Exhibition (trade show) |
| IFE | Institute for Exploration (deep-sea archaeology) |
| IFE | Institute of Fire Engineers |
| IFE | International Field Experience (various schools) |
| IFE | In Full Effect (band) |
| IFE | International Food and Drink Exhibition (London) |
| IFE | In-Flight Emergency |
| IFE | International Food and Drink Event (London) |
| IFE | International Family Entertainment, Inc. |
| IFE | Injury Free Environment |
| IFE | Internet Forum Europe |
| IFE | Internal Factor Evaluation |
| IFE | Integrated Fluids Engineering (oil/gas drilling) |
| IFE | Instrument Flight Examiner |
| IFE | Instructor Flight Engineer (USAF crew position defintion) |
| IFE | Interactive Front End |
| IFE | Iron Fist Empire (gaming clan) |
| IFE | Independent Fee Estimate (FAA regulatory requirement) |
| IFE | Intrahousehold Flypaper Effect (finance) |
| IFE | In-Flight Extraction |
| IFE | Instantaneous Fuel Economy |
| IFE | Institut Français d'Écosse (French: French Institute of Scotland; UK) |
| IFE | Independent Foundation Engineers, Inc (Plano, TX) |
| IFE | Inertail Fusion Energy |
| IFE | Innovationen Für Einstiegssysteme (Innovations for Entrance Systems; Austria) |
| IFE | Industrial Foundation for Enterprise |