ALS (disambiguation)

ALS or Als may mean:

Aviation

• ALS – Aircraft Leasing Services, a Kenyan airline
• Airman Leadership School, a U.S. Air Force program
• Approach lighting system, an airport runway lighting system
• San Luis Valley Regional Airport, IATA code ALS

Medicine

• Amyotrophic lateral sclerosis, a form of motor neuron disease; also known as Lou Gehrig's disease
• Advanced life support, a level of medical training
• Anterolateral system, part of the nervous system
• Antibodies from lymphocyte secretions, an immunological assay

Science and technology

• Acetolactate synthase, an enzyme
• Advanced Light Source, a synchrotron radiation facility
• Advanced Low-power Schottky
• Alternate line service, a mobile phone feature
• Ambient Light Sensor
• Ammonium lauryl sulfate, a household chemical
• Antilag system, a system used on turbocharged engines
• Audio Lossless Coding, an audio codec
• Automatic Train Signalling (автоматична локомотивна сигналізація), a train protection system
• Aluminized Steel, as used in engineering drawings
• Associate of the Linnean Society of London

Education

• Alternative Learning System (Philippines), a modular non-formal education program

Other uses

• Als Island, Denmark
• Singapore Area Licensing Scheme
• Autographed Letter Signed, a term related to auctions of autographs
• Als, A nickname used for the Montreal Alouettes of the Canadian Football League
• ALS Association, an American nonprofit organization
• Australian Linguistic Society