| Acronym | Definition |
|---|
| LFF | Lincoln Financial Field (Philadelphia, PA) |
| LFF | Libraries for the Future |
| LFF | London Film Festival |
| LFF | Lucania Film Festival (Italy) |
| LFF | Large Format File |
| LFF | Lucasfilm Format |
| LFF | Linux Firefox |
| LFF | Lawyers for Forests (Australia) |
| LFF | Large Form Factor |
| LFF | Lumpkin Family Foundation (Illinois) |
| LFF | Louisiana Family Forum (Baton Rouge, Louisiana) |
| LFF | Looking for Fellowship (gaming) |
| LFF | Leary Firefighters Foundation |
| LFF | Low Frequency Filter |
| LFF | London Fetish Fair (London, UK) |
| LFF | Living Faith Fellowship |
| LFF | Lesser Feasts and Fasts (Episcopal Church) |
| LFF | Latvijas Futbola Federacija (Latvian Football Federation) |
| LFF | Logistics Factors File |
| LFF | London Fashion Forum (UK) |
| LFF | Laboratory for Freeform Fabrication (UT Austin) |
| LFF | Librarians for Fairness (advocate group) |
| LFF | Last Frame First |
| LFF | Lead-Free Frangible (Ammunition) |
| LFF | Large Formation Flyer |