LR

LR or Lr may refer to:

Arts and entertainment

Late Registration, 2005 album by Kanye West
Lego Racers, a product line (or theme) of the toy brand Lego
Line Rider, an internet physics-based game
Logan's Run, 1967 novel that has spawned multiple adaptations and sequels in literature, film, television, and comic books
The Lord of the Rings, a novel by J. R. R. Tolkien and its subsequent adaptations
The Lost Road and Other Writings, part of The History of Middle-earth book series by Christopher Tolkien

Lacsa/TACA, an airline (IATA code LR)
Land Rover, a British car manufacturer
Lenoir–Rhyne University in Hickory, North Carolina
The Republicans (France) (Les Républicains), a political party of France
Lloyd's Register, a technical and business services organisation and a maritime classification society

La Ronde (amusement park), a amusement park in Montreal, Canada
Liberia (ISO 3166-1 alpha-2 country code LR)
RAF Little Rissington, an RAF aerodrome and former RAF station in Gloucestershire, England
Little Rock, Arkansas, the capital of Arkansas, United States

LR parser, |(Left-to-right, Rightmost-derivation with k symbols of lookahead), a type of parser for deterministic context-free grammars
Lexical resource, a database consisting of one or several dictionaries
Link register, a special purpose register that holds the address to return to when a function call completes on many instruction set architectures
Adobe Photoshop Lightroom, photography software program

Latus rectum, a line segment parallel to the directrix through the focus of a conic section
L(R) (pronounced L of R), in set theory