LN

LN, Ln or ln may refer to:

Arts and entertainment

 * Lawful Neutral, an alignment in Dungeons & Dragons
 * The Sims 3: Late Night, the third expansion pack to The Sims 3
 * Light novel, a style of Japanese novel for young adults
 * LN (band), American slow core band

Government, military and politics

 * League of Nations, intergovernmental organisation (19201946)
 * Legalman, a United States Navy occupational rating
 * Lega Nord, a northern Italian populist political party
 * Livable Netherlands, a defunct Dutch political party
 * Lost Nomination (LN), as of losing a nomination

Math, science and technology

 * Natural logarithm (ln), or logarithm base e, a mathematical function
 * ln (Unix), a UNIX command that creates file links
 * IBM Lotus Notes, the client of a collaborative client-server platform from IBM
 * Lanthanide (of which 'Ln' is an informal name) or lanthanoid, a series of chemical elements
 * Liquid nitrogen, the liquefied form of the gas
 * Lymph node, an anatomical feature involved in immunological function
 * Lightning Network, the decentralized network of Bitcoin to support instant payments

Places

 * Lane (Ln), as part of the proper name for a country lane
 * Liaoning, a province of China (Guobiao abbreviation LN)
 * LN postcode area, in Britain, named after Lincoln

Other uses

 * Libyan Airlines, by IATA code
 * Louisville and Nashville Railroad, by reporting mark
 * Lingala language, by ISO 639 code ln
 * Lingnan University, abbreviate as LN