LF

LF or Lf may refer to:

Arts and entertainment

• LF (album), by Raymond Lam
• Laxius Force, a role-playing video game trilogy
• Libby Folfax, a character in Jimmy Neutron: Boy Genius
• Lifeforce (film), a 1985 film directed by Tobe Hooper
• Salamander (video game), an arcade game retitled Life Force

Companies and organisations

• LeapFrog Enterprises, an educational toy company
• Lebanese Forces, a Lebanese political party
• Li & Fung, a company of Hong Kong
• Linux Foundation, a non-profit organization for the promotion of Linux
• LoveFilm, UK-based provider of home video and video game rental through DVD-by-mail and streaming video on demand
• People's Life First, a Japanese political party
• FlyNordic (IATA airline designator LF), a defunct Swedish airline
• Nippon Broadcasting System, also known as JOLF, a radio station in Tokyo, Japan
• LF Corporation, a South Korean fashion company

Places

• Lakeland, Florida
• Livermore Falls, Maine
• Lambeau Field, a stadium in Green Bay, Wisconsin and the home of the Green Bay Packers

Science and technology

Biology and medicine

• Lactoferrin, a protein
• Lassa fever, a type of viral hemorrhagic fever
• Lateral flow test, an immunologic test
• Lymphatic filariasis, a disease common in tropical regions
• L.f., taxonomic author abbreviation of Carl Linnaeus the Younger (1741–1783), Swedish naturalist

Logic and information theory

• Lexical function, a tool for the description of semantic relationships
• Logical form, the abstract form of a set of sentences in logic
• Logical form (linguistics), a level of syntactic representation
• Logical framework, in automated theorem proving
  • LF (logical framework), a particular logical framework

Other uses in science and technology

• Missile launch facility, a structure used for launching ballistic missiles
• Limestone filler, used in cement and concrete fabrication
• Line feed character, in typing and computing; also called newline, line break, or end-of-line
• Lineal foot, a measurement of length without regard to width
• Load factor (disambiguation)
• Logic File, a logic file category
• London forces, a type of intermolecular forces
• Low frequency, a radio frequency between 30 and 300 kHz

Other uses

• Laissez-faire, a concept in economics
• Left fielder, a defensive position in baseball
• Left Front (disambiguation)
• Lexus LF, a concept automobile
• LF-routes, a network of long-distance cycling routes in the Netherlands and Belgium