Les

LES or Les may refer to:

People

 * Les (given name)
 * Les (surname)
 * L.E.S. (producer), hip hop producer

Space flight

 * Launch Entry Suit, worn by Space Shuttle crews
 * Launch escape system, for spacecraft emergencies
 * Lincoln Experimental Satellite series, 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
 * Lupus erythematosus systemicus

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
 * Les, a village in Tejakula district, Buleleng regency, Bali, Indonesia
 * Lesotho, IOC and UNDP country code
 * Lès, a word featuring in many French placenames

Transport

 * Leigh-on-Sea railway station, National Rail station code
 * Leytonstone tube station, London Underground station code

Other uses

 * "L.E.S.", a song by Childish Gambino from Camp (album)
 * Lake-effect snow
 * Large eddy simulation in fluid dynamics
 * Law Enforcement Sensitive, a US security classification
 * Leave and Earnings Statement, of US military
 * Les (Vietnam), a Vietnamese term for lesbians
 * Les+ Magazine, a Chinese LGBT magazine
 * Licensing Executives Society International, a US intellectual property organization
 * Life Extension Society, a cryonics organization
 * Lifetime Entertainment Services, a US company
 * Lilliput Edison screw, a 5mm light bulb socket
 * Louisiana Energy Services, which operates the National Enrichment Facility