| Acronym | Definition |
|---|
| FDL➣Free Documentation License |
| FDL➣Fond Du Lac (Amtrak station code; Fond Du Lac, WI) |
| FDL➣Fond du Lac (Wisconsin, US) |
| FDL➣Fleur-de-Lis (symbol) |
| FDL➣FireDogLake (website) |
| FDL➣Fonds de Développement Local (French: Local Development Fund; Madagascar) |
| FDL➣Frontier Development Lab (US NASA) |
| FDL➣Facility Data Link |
| FDL➣Facilities Data Link |
| FDL➣File Definition Language |
| FDL➣Fiber Delay Line |
| FDL➣Federal Direct Loan (US Department of Education) |
| FDL➣Flexor Digitorum Longus |
| FDL➣Forward Defense Line |
| FDL➣Fighter Data Link |
| FDL➣Flight Dynamics Laboratory |
| FDL➣Faculdade de Direito de Lisboa (Lisbon Law School; Portugal) |
| FDL➣Fieldbus Data Link |
| FDL➣Flight Deck Lighting (US Navy) |
| FDL➣France Divertissement Loisir (French: France Entertainment Leisure) |
| FDL➣Fuselage Datum Line (Airbus Aircraft manual) |
| FDL➣Final Determination Letter |
| FDL➣Fast Deployment Logistics |
| FDL➣Forensic Document Lab |
| FDL➣Fardeloup Dynamisme Loisirs (French sports association) |
| FDL➣FAAD Data Link |
| FDL➣Forms Definition Language |
| FDL➣Finite Distributed Lag |
| FDL➣Forward Defended Localities |
| FDL➣Fall Down Laughing |
| FDL➣Fermentation Development Laboratory |
| FDL➣Florida Drumline (University of Florida) |
| FDL➣Forum on Specification, Verification and Design Languages |
| FDL➣Focus Design Location |
| FDL➣Failure Derivation Location |