LES

LES or Les may refer to:

Space flight

• Launch Entry Suit, worn by Space Shuttle crews
• Launch Escape System, for spacecraft emergencies
• Lunar Escape Systems, a proposed escape from the moon if the Apollo Lunar Module had any major problems
• Lincoln Experimental Satellite series, launched in the 1960s and 1970s

Biology and medicine

• Lazy Eye Syndrome, or amblyopia, a disorder in the human optic nerve
• The Liverpool epidemic strain of Pseudomonas aeruginosa
• Lower esophageal sphincter

Places

• The Lower East Side neighborhood of Manhattan, New York City
• Les, Catalonia, a municipality in Spain
• Leş, a village in Nojorid Commune, Bihor County, Romania
• Les, the Hungarian name for Leșu Commune, Bistriţa-Năsăud County, Romania

Other uses

• Lake-effect snow
• Large eddy simulation, a mathematical modelling of turbulence
• Law Enforcement Sensitive, a US information security classification
• Leave and Earnings Statement, a monthly statement given to members of the US military
• L.E.S. (producer), hip hop producer
• Licensing Executives Society International, a US intellectual property organization
• Life Extension Society, a cryonics organization founded in 1964
• Lifetime Entertainment Services, an American entertainment industry company
• Lilliput Edison screw, a 5mm light bulb socket
• Linear Equation System
• Louisiana Energy Services, which operates the National Enrichment Facility
• Little Emperor Syndrome
• London Evening Standard, a newspaper
• Les (given name), including a list of people called Les
  • Short form of the name Lester
  • Short form of the name Leslie
• Les (surname)