LJ may refer to:

Arts and media

* L. J. Burrows, a fictional character on the TV series ''Prison Break'' *

Lemon Jelly Lemon Jelly are a British electronic music duo from London that formed in 1998 and went on hiatus starting in 2008. Since its inception, the band members have always been Fred Deakin and Nick Franglen. Lemon Jelly has been nominated for awards ...

, a British electronica duo *''

Library Journal ''Library Journal'' is an American trade publication for librarians. It was founded in 1876 by Melvil Dewey. It reports news about the library world, emphasizing public libraries, and offers feature articles about aspects of professional prac ...

'', an American trade publication for librarians *''

Linux Journal ''Linux Journal'' (''LJ'') is an American monthly technology magazine originally published by Specialized System Consultants, Inc. (SSC) in Seattle, Washington since 1994. In December 2006 the publisher changed to Belltown Media, Inc. in Hous ...

'', an American monthly technology magazine *

LiveJournal LiveJournal (), stylised as LiVEJOURNAL, is a Russian-owned social networking service where users can keep a blog, journal, or diary. American programmer Brad Fitzpatrick started LiveJournal on April 15, 1999, as a way of keeping his high school ...

, a Russian social networking service

Businesses and organizations

* LJ Air, a Chinese airline *

Jin Air Jin Air Co., Ltd. () is a South Korean low-cost airline. As of April 2018, it operates flights to six domestic cities and 26 international destinations. It launched its first long haul route, between Incheon and Honolulu, in December 2015. It has ...

, a South Korean airline (IATA code LJ) * Lashkar i Jhangvi, a Muslim terrorist organization

People

L. J. F. Brimble Lionel John Farnham Brimble (16 January 1904 in Radstock, Somerset – 15 November 1965 in London) was a botanist, author, Fellow of the Royal Society of Edinburgh and editor of the journal ''Nature''. Early life He was born in 1904, the son ...

(1904–1965), English botanist * L. J. Castile (born 1987), American football player * L. J. Collier (born 1995), American football player *

L. J. Cooke Louis Joseph "L. J." "Doc" Cooke (February 15, 1868 – August 19, 1943) was the first head men’s basketball coach at the University of Minnesota. He coached the Minnesota Golden Gophers men’s basketball team for 28 seasons. Cooke also ser ...

(1868–1943), American basketball coach *

LJ Cryer Lionel "LJ" Cryer Jr. (born October 9, 2001) is an American basketball player. He played college basketball for the Houston Cougars and Baylor Bears. High school career Cryer played basketball for Morton Ranch High School in Katy, Texas. As a jun ...

(born 2001), American basketball player * L. J. C. Daniels (1858–1949), American political activist *

L. J. Davis Lawrence James Davis (better known as L. J. Davis; July 2, 1940 – April 5, 2011) was an American writer, whose novels focused on Brooklyn, Brooklyn, New York. Davis's novel, ''A Meaningful Life'', described by the ''Village Voice'' as a "sc ...

(1940–2011), American writer * L. J. Fellenz (1882–1941), American politician * L. J. Figueroa (born 1998), Dominican-American basketball player * L. J. Foret (1930–2002), American musician * L. J. Forman (1855–1933), American politician *

L. J. Fort Larry Fort Jr. (born January 3, 1990) is an American former professional football linebacker. He played college football at Northern Iowa and was signed by the Cleveland Browns as an undrafted free agent in 2012. Fort was also a member of the D ...

(born 1990), American football player *

L. J. Greenberg L. J. Greenberg, born Leopold Jacob Greenberg (1861–1931), was a British journalist. He had become an energetic propagandist of the new Zionism in England by the Third Zionist Congress in 1899, at which he and Jacob de Haas were elected as mem ...

(1861–1931), British journalist *

L. J. Hanifan Lyda Judson Hanifan (February 12, 1879 – December 11, 1932), better known as L. J. Hanifan, is credited with introducing the concept of social capital. Robert Putnam in his book, ''Bowling Alone'' (2000) credits a 1916 paper by Hanifan as the fir ...

(1879–1932), American economist * L. J. Hepp (born 1978), American basketball coach * L. J. Hoes (born 1990), American baseball player * L. J. Jenkins (born 1987), American cowboy *

LJ Martin LJ Martin is an American college football running back for the BYU Cougars football, BYU Cougars. Early life Martin attended Canutillo High School in Canutillo, Texas, where he rushed for 2,137 yards and 23 touchdowns and made 15 catches for 3 ...

, American football player * L. J. Maxwell (1851–??), American politician * L. J. Mazzilli (born 1990), American baseball player *

L. J. McCray James Oneil "L. J." McCray II (born June 18, 1991) is an American former professional football safety who played for the San Francisco 49ers of the National Football League (NFL). He played college football at Catawba College. He also played for ...

(born 1991), American football player * L.J. McCray (defensive lineman) (born 2005), American football player * L. J. Peak (born 1996), American basketball player *

LJ Reyes Lourna Jane Pujeda Reyes-Evangelista (born December 25, 1987), known professionally as LJ Reyes, is a Filipino actress. She is best known as one of the Final Four in the second season of the widely acclaimed GMA reality TV show, '' StarStr ...

(born 1987), Filipino actress * L. J. Roberts (born 1980), American textile artist * L. J. Seneviratne (1899–??), Sri Lankan civil servant * L. J. K. Setright (1931–2005), English journalist * L. J. Sevin (1930–2015), American venture capitalist *

L. J. Shelton L. J. Shelton (born March 21, 1976) is an American former professional football player who was an offensive tackle for 10 seasons in the National Football League (NFL). He was selected by the Arizona Cardinals 21st overall in the 1999 NFL draft ...

(born 1976), American football player *

L. J. Smith John Smith III (born May 13, 1980), commonly known as L. J., which stands for "Little John", is an American former professional football player who was a tight end in the National Football League (NFL). He played college football for the Rutger ...

(born 1980), American football player *

L. J. Smith (author) Lisa Jane Smith (September 4, 1958 – March 8, 2025) was an American author of young adult fiction best known for her best-selling series ''The Vampire Diaries (novel series) , The Vampire Diaries'', which has been turned into a The Vampire Dia ...

(born 1965), American author * L. J. van Zyl (born 1985), South African athlete *

Larry Johnson (basketball, born 1969) Larry Demetric Johnson (born March 14, 1969) is an American former professional basketball player who spent his career as a power forward with the Charlotte Hornets and the New York Knicks of the National Basketball Association (NBA). An NCAA c ...

, American basketball player *

Lawrence Jackson Lawrence Christopher Jackson (born August 30, 1985) is an American former professional American football, football player who was a defensive end in the National Football League (NFL). He was selected by the Seattle Seahawks in the first rou ...

(born 1985), American football player

Places

La Jolla, California La Jolla ( , ) is a hilly, seaside neighborhood in San Diego, California, occupying of curving coastline along the Pacific Ocean. The population reported in the 2010 census was 46,781. The climate is mild, with an average daily temperature o ...

Ljubljana {{Infobox settlement , name = Ljubljana , official_name = , settlement_type = Capital city , image_skyline = {{multiple image , border = infobox , perrow = 1/2/2/1 , total_widt ...

, the capital of Slovenia

Science and technology

System LJ In mathematical logic, sequent calculus is a style of formal logical argumentation in which every line of a proof is a conditional tautology (called a sequent by Gerhard Gentzen) instead of an unconditional tautology. Each conditional tautology i ...

, Gentzen's sequent calculus for intuitionist logic *

LaserJet LaserJet is a line of laser printers sold by HP Inc. (originally Hewlett-Packard) since 1984. The LaserJet was the world's first commercially successful laser printer. Canon supplies both mechanisms and cartridges for most HP laser printers; s ...

, a printer brand name *

Lennard-Jones potential In computational chemistry, molecular physics, and physical chemistry, the Lennard-Jones potential (also termed the LJ potential or 12-6 potential; named for John Lennard-Jones) is an intermolecular pair potential. Out of all the intermolecul ...

, a function used in chemical physics *

Lightweight Java Lightweight Java (LJ) is a fully formalized and extensible minimal imperative fragment of Java. The language was designed for academic purposes within the Computer Laboratory, University of Cambridge. The definition of LJ was proven type-sound in ...

, a programming language

Other uses

* "Long jump" athletics abbreviation in track and field * ǈ (digraph), a digraph used in some Slavic languages *