LAS may stand for:

  • Little Angels' School, a top school in Nepal
  • L.A. Symphony, a Christian hip hop group from Los Angeles
  • League of Arab States, an international organization of Arab nations
  • Leeds Atheist Society, a student group in Leeds, United Kingdom
  • Legal Aid Society, an American provider of legal services
  • Leysin American School, a boarding school in Switzerland
  • Líneas Aéreas Suramericanas, an airline based in Bogotá, Colombia
  • Lithuanian Academy of Sciences
  • Log ASCII Standard, a standard digital format for wellbore logs in the petroleum industry
  • London Ambulance Service, an emergency service in London
  • Lymphadenopathy syndrome, an AIDS related syndrome
  • McCarran International Airport, an airport in Las Vegas, Nevada with IATA code LAS
  • Association of Lithuanian Automobilists, a member of the FIA
  • Linear Alkylbenzene Sulfonate, an alternate name for sodium dodecylbenzenesulfonate, a kind of surfactant widely used in detergents and other cleaning products
  • Low affinity site, a region of DNA to which RNA polymerase binds to when not in use
  • Lucasfilm Animation Singapore, a Lucasfilm studio dedicated to the Clone Wars TV 3D series, movie effects and video games
  • Lahore American School, a high school in Pakistan

Las may refer to:

  • Las, a character in Greek mythology, killed by Patroclus
  • Las, Lublin Voivodeship, a village in eastern Poland
  • Las, Silesian Voivodeship, a village in southern Poland
  • Las, Gliwice County, a village also in Silesian Voivodeship, southern Poland
  • Łaś, Masovian Voivodeship (east-central Poland)
  • Las Khorey, a city in northern Somalia
  • The La's, English pop band