LR or Lr may refer to:

Businesses and organizations

• Avianca Costa Rica, an airline, IATA airline code LR
• Lenoir–Rhyne University in Hickory, North Carolina
• Lenong Regiment, an infantry regiment of the South African Army
• The Republicans (France) (Les Républicains), a political party in France
• Lloyd's Register, a technical and business services organisation and a maritime classification society

Places

• Lithuania (Lietuvos Respublika, LR)
• Liberia (ISO 3166-1 alpha-2 country code LR)
  • .lr, the Internet country code top-level domain for Liberia
• Little Rock, Arkansas, United States

Science, technology and mathematics

• LR parser, a type of parser in computer science
• Lexical resource, a database consisting of one or several dictionaries
• Link register, a special purpose register in computer architecture
• Adobe Lightroom, photography software program
• L(R) (pronounced L of R), in set theory
• Lawrencium, symbol Lr, a chemical element
• .22 Long Rifle, a type of rimfire ammunition
• Limiting reagent, the reactant that is completely consumed in a chemical reaction

Other uses

• Legislative route, a U.S. highway defined by laws passed in a state legislature
• Latvijas Radio, a public radio broadcaster in Latvia
• Light rail, a type of rail-based passenger transport

See also

• Long Range (disambiguation)
• Left and right (disambiguation)