LFS
- Flame speed
- French School of Seoul
- French School of Singapore
- Git
- Labour Force Survey
- Large File Summit
- Large-file support
- Libertarian Futurist Society
- Lincoln Financial Sports
- Linux From Scratch
- Live File System
- Live for Speed
- Li–Fraumeni syndrome
- Log File System
- Log-structured File System (BSD)
- Logic File System
- London Film School
- London Free School
- Luiz Felipe Scolari
- Lundy
- Lutheran Family Services of Virginia
- Lycée Français de Shanghai
- Nova Bus LF Series