LFK
| Acronym | Definition |
|---|---|
| LFK | Landesanstalt Für Kommunikation (German: State Institute of Communications) |
| LFK | Lenkflugkoerpersysteme GmbH (European Aeronautic Defence and Space Company) |
| LFK | Lemaster Family Kitchen (Chicago, IL) |
| LFK | Life Force Kratom |
| LFK | Luftforsvarets Forsyningskommando |
| LFK | Livermore Fortran Kernels (computer performance test) |
| LFK | Light French Kissing |
| LFK | Little Fat Kid |
| LFK | Les French Killers (gaming clan) |