| Acronym | Definition |
|---|
| FLE | Frontal Lobe Epilepsy (neurology) |
| FLE | Français Langue Étrangère |
| FLE | Foundation for Learning Equality (California) |
| FLE | Fondazione Luigi Einaudi (Italian: Luigi Einaudi Foundation) |
| FLE | Forest Lake Elementary (various locations) |
| FLE | Flash-Lag Effect (visual illusion) |
| FLE | Foreign Language Education |
| FLE | Family Life Educator |
| FLE | Future Learning Environment (Finland) |
| FLE | Forward Logistics Element |
| FLE | Future Logistics Enterprise |
| FLE | Fatigue Life Expended |
| FLE | Full-Load Equivalent (student enrollment calculation) |
| FLE | Flight Line Entitlement (US DoD) |
| FLE | Functional Literacy Exam |
| FLE | Foreign Legal Entity |
| FLE | Fixed Leading Edge (aircraft engineering) |
| FLE | Federacio de Laboristaj Esperantistoj (Esperanto; labor federation) |
| FLE | Future Logistics Environment (US DoD) |
| FLE | Firefly Lantern Extract |
| FLE | Flandra Ligo Esperantista (Esperanto; labor federation) |
| FLE | Facility Life Extension |
| FLE | Finland, Lithuania, Estonia (time) |
| FLE | Firstline Elite (UK) |
| FLE | Formal Literary Essay |
| FLE | Fraternity of Linemen and Wiremen |