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 L-n, a pseudonym of Yiddish writer Mordecai Spector
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 Late Neolithic, an archaeological period 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 Norway (aircraft registration prefix LN)
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 Norway (aircraft registration prefix LN)