| Acronym | Definition |
|---|
| LF | Low Frequency (30-300 kHz; 10-1km) |
| LF | Looking For |
| LF | Line Feed |
| LF | Lebanese Forces |
| LF | Large Format |
| LF | Lead Free (bullet) |
| LF | Little Fighter (game) |
| LF | Lake Forest (Orange County, California) |
| LF | Lethal Factor (microbiology) |
| LF | Load Factor |
| LF | Lace Front (wigs) |
| LF | Left Foot (dance) |
| LF | Life Fitness |
| LF | Logical Framework |
| LF | Left Front |
| LF | Loaf (street type) |
| LF | Light Front (physics) |
| LF | Life Fellow |
| LF | Landfill |
| LF | Leaflet |
| LF | LeapFrog Enterprises Inc. (stock symbol; Emeryville, CA) |
| LF | Leonel Fernandez (Dominican Republic president) |
| LF | Linux Format (UK magazine) |
| LF | Latex Free (latex allergies) |
| LF | Löschgruppenfahrzeug (German: fire department) |
| LF | Luminosity Function |
| LF | Linear Foot |
| LF | Labor Force (economics) |
| LF | Left Forward |
| LF | Loanable Fund |
| LF | Live Feed (film) |
| LF | Loi de Finances (French: Finance Law) |
| LF | Left-Arm Fast (cricket; also seen as LAF) |
| LF | Live Fire |
| LF | Lymphatic Filariasis |
| LF | Life Force |
| LF | Liberation Front |
| LF | Life Form |
| LF | Leading Firefighter |
| LF | Long Float (C programming language) |
| LF | Loop Filter |
| LF | LocationFree Player (Sony WiFi base) |
| LF | Love and Friendship |
| LF | Landing Force |
| LF | Love Forever |
| LF | Late Fee |
| LF | Largest Frame |
| LF | Launch Facility (USAF Minuteman missile) |
| LF | Ladle Furnace (metallurgy) |
| LF | Late Finish |
| LF | Lilith Fair |
| LF | Light Fantastic (book by Terry Pratchett) |
| LF | Line Fit |
| LF | Light Fine |
| LF | Light Face |
| LF | Line Finder |
| LF | Loud Family (band) |
| LF | Locally Funded |
| LF | Liver Flush |
| LF | Lucio Fulci (director) |
| LF | La Farola (Revista cultural de los Maristas de Alicante y sus alumnos) |
| LF | Legendary Frog (Flash movie maker) |
| LF | Free-Space Loss |
| LF | Loud Fan |
| LF | Leaffolder |
| LF | Lissajous Figure |
| LF | Lutece Falco |
| LF | Low Forage |
| LF | Ledger Folio |
| LF | Logistics Function |
| LF | Left Field(er) (baseball) |
| LF | Lucas Films Ltd. |