| Acronym | Definition |
|---|
| LFR | Living Forgotten Realms (Dungeons and Dragons campaign) |
| LFR | Looking for Raid (World of Warcraft) |
| LFR | Large Format Retail (various companies) |
| LFR | Low Frequency Radio |
| LFR | Let Freedom Ring |
| LFR | Logical Form Recognition |
| LFR | Lead-Cooled Fast Reactor |
| LFR | Loud Fast Rules |
| LFR | Land and Food Resources (various organizations) |
| LFR | Lio 'on Famor Rotuma Party (Fiji) |
| LFR | Linear Fresnel Reflector (solar energy) |
| LFR | Laboratories for Fundamental Research |
| LFR | Low Frequency Radio Range |
| LFR | Inshore Fire Support Ship |
| LFR | Levine Fricke Recon (Emeryville, CA environmental management and consulting engineering company) |
| LFR | Lower Fuser Roller (copier component) |
| LFR | Lower Fuser Roller |
| LFR | Loss Free Resistor (electronics) |
| LFR | Live for Rugby (rugby clothing brand) |
| LFR | Low Frequency Response |
| LFR | Live Fire Range |
| LFR | Laughing for Real (Internet slang) |
| LFR | Local Forest Reserve |
| LFR | Latin Funk Rock (band) |
| LFR | Launch and Flight Reliability |
| LFR | Lett Feltradio (Norwegian) |
| LFR | Logical First Routing |
| LFR | Long-Term Failure Rate |
| LFR | Licence Fee Revenue |
| LFR | Losers for Real |
| LFR | Lower Front Right |