WLF is an abbreviation that may stand for:
- Wallis and Futuna, territory of France, ISO 3166-1 alpha-3 country code
- Wu Lin Feng, a Chinese Mixed martial arts show
- West Liberty Foods, a meat processing company in Iowa
- The Williams-Landel-Ferry model for expressing the temperature dependence of liquid viscosity
- Filename extension for a 'WinBackup File Extension Library' file, for example "example.wlf"
- Filename extension for a 'Mentor Graphics ModelSim' (digital logic simulation application) file. In this context, wlf is short for 'wave log format'
- Washington Legal Foundation
- Waist-level finder, a kind of viewfinder used in some cameras
- Swap loader vehicle ("Wechselladerfahrzeug") in German containerized firefighting equipment
- World Leagues Forum
- World Literacy Foundation
- World Lung Foundation
- Whittlesford Parkway railway station (station code)
- Viva La Figa, the meaning of the three letters on Valentino Rossi's leathers