Lf
- Belgium
- Carl Linnaeus the Younger
- FlyNordic
- Foot (unit)
- LF (album)
- LF (logical framework)
- LF-routes
- Lactoferrin
- Laissez-faire
- Lakeland, Florida
- Lambeau Field
- Lateral flow test
- Laxius Force
- LeapFrog Enterprises
- Lebanese Forces
- Left Front (disambiguation)
- Left fielder
- Lexical function
- Lexus LF
- Lifeforce (film)
- Limestone
- Line feed
- Linux Foundation
- List of Jimmy Neutron characters
- Livermore Falls, Maine
- Load factor (disambiguation)
- Logical form
- Logical form (linguistics)
- Logical framework
- London forces
- LoveFilm
- Low frequency
- Lymphatic filariasis
- Missile launch facility
- Netherlands
- Nippon Broadcasting System
- People's Life First
- Salamander (video game)