ALS (disambiguation)

ALS or Als may mean:

Medicine

• Amyotrophic lateral sclerosis, 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

Aviation

• 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

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
• 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

Other uses

• Als Island, Denmark
• Alexander Language Schools International
• Singapore Area Licensing Scheme
• Autographed Letter Signed, a term related to auctions of autographs