Lex

Lex or LEX may refer to:

Computing

 * Amazon Lex, a service for building conversational interfaces into any application using voice and text
 * LEX (cipher), a stream cipher based on the round transformation of AES
 * Lex (software), a computer program that generates lexical analyzers
 * lex (URN), a URN namespace that allows accurate identification of laws and other legal norms

Music

 * L.E.X., the third studio album by Liverpool Express
 * "Lex", a song from Ratatat's 2006 album Classics
 * Lex (album), a mini-album and partial soundtrack by Portland, Oregon duo Visible Cloaks
 * Lex Records, an independent record label

People and fictional characters

 * Lex (given name)
 * Lex (surname)
 * Lex Luger, ring name of American professional wrestler Lawrence Pfohl (born 1958)
 * Lex Steele, stage name of American pornographic actor Clifton Britt (born 1969)

Places

 * Lex, West Virginia, an unincorporated community
 * Lexington Avenue, a street in Manhattan in New York City

Codes

 * LEX, IATA code for Blue Grass Airport, a public airport in Fayette County, Kentucky, United States
 * lex, ISO 639-3 code for the Luang language, spoken in Indonesia

Other uses

 * Lex, the Latin word for law, plural leges; see list of Roman laws for specific laws beginning with lex, such as lex Vatinia
 * USS Lexington (CV-2), a United States Navy aircraft carrier
 * Lex (dog) (1999–2012), the first active duty, fully fit military working dog to be granted early retirement in order to be adopted
 * LEX (sounding rocket), a French experimental hybrid-propellant sounding rocket
 * Lex Autolease, the United Kingdom's largest vehicle leasing business
 * Lex building, a high-rise of government offices in the European Quarter of Brussels
 * Lex, a daily featured column in the Financial Times
 * Lex XI F.C., a Welsh football team based in Wrexham
 * Leading-edge extension, a small extension to an aircraft wing surface
 * Severe Tropical Storm Lex, a category-1 typhoon in the 1983 Pacific typhoon season
 * Lex, the mascot of the word-forming puzzle video game Bookworm
 * Same character in the follow-up game Bookworm Adventures