LS may refer to:

Businesses

• LS Group, a Korean company

• Jet2.com (IATA code: LS), a British airline

Latin

• Lewis and Short (abbr. "L&S"), authors of the 1879 work A Latin Dictionary

• Lectori Salutem (L.S.), Latin for 'Greetings Reader' and used as opening words to a letter

• locus sigilli, Latin for 'place of the seal', used in notarized and legal documents; see: Seal (contract law)

Organizations

• Liberal Party of Croatia ( or LS), a Croatian political party active from 19982006

• Liberal Democratic Party (Serbia, 1989), formerly known as the Liberal Party and abbreviated as LS

• Liberals of Serbia, a defunct political party in Serbia

• Liberals' Movement (Lithuania), a political party in Lithuania

• Lincoln-Sudbury Regional High School, Massachusetts, US

• Lok Sabha, the lower house of the Parliament of India

• Loyola Schools, the college unit of the Ateneo de Manila University in Quezon City, Philippines

Places

• Lesotho (ISO 3166-1 country code: LS), a country in southern Africa

• LS postcode area, UK, covering Leeds

• County Laois, Ireland

Science, technology, and mathematics

Astronomy

• Light-second (ls), a unit of length in astronomy equivalent to the distance light travels in one second

• Local Supercluster (LS) or Virgo Superclaster, our galaxy supercluster

Biology and medicine

• Lung surfactant, a lipoprotein complex

• Legius syndrome, also known as Neurofibromatosis 1-like syndrome, a genetic disorder

• Lichen sclerosus, a skin disease

• Linnean Society of London, postnominal LS

• Live sand, in aquaria, sand populated with bacteria and organisms to aid in dissolving organic wastes

Computing and electronics

• ls, a command specified by POSIX and by the Single UNIX Specification; used for listing files

• .ls, the internet top-level domain for Lesotho

• Link-state routing protocol, used in packet-switching networks

• Location Services, a component of Microsoft's System Center Configuration Manager software

• LS, a low-power Schottky version of a 7400 series chip

Engineering

• Land Surveyor

Mathematics

• Least squares, a regression analysis

• Löwenheim–Skolem theorem, a theorem in first-order logic dealing with the cardinality of models

Physics

• LS coupling, interaction between quantum numbers

Transportation

• LS, a generic trim of Chevrolet vehicles

• LS, a model prefix on sailplanes made by Rolladen-Schneider Flugzeugbau GmbH

• LS 90, a Czech and Slovak train protection system

• Lexus LS, a full-size luxury sedan produced by Lexus

• Lincoln LS, a mid-size luxury sedan produced by Lincoln

• GM LS engine, a V-8 engine in General Motors cars

Other uses

• La Salle (disambiguation), several places and educational institutions

• Latvian lats (Ls or ℒ𝓈), former currency of Latvia

• LaVeyan Satanism, a religious group

• Leading Seaman, a junior non-commissioned rank in several navies

• Lisburn Standard, Northern Irish newspaper

• Logistics Specialist, a rating in the United States Navy

• Long snapper, a special teams player in American football

• Lost Souls (online game), a MUD, or text-based online role-playing game

• Sudanese pound, currency of Sudan, abbreviated to LS or £Sd

• Syrian pound, currency of Syria, abbreviated to LS or £S