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Lock may refer to:

Common meanings[edit]

Information technology[edit]

  • File locking, describes a mechanism that restricts access to a computer file
  • Lock (computer science), a bookkeeping object used to serialize concurrent access
  • Lock (database), a feature used when multiple users access a database concurrently
  • SIM lock, a restriction on mobile phones to work only in certain countries or with certain providers



  • Lock (surname)
  • Ormer Locklear (1891–1920), American stunt pilot and film actor nicknamed "Lock"
  • Lock Martin (1916–1959), stage name of American actor Joseph Lockard Martin, Jr., best known for playing the robot Gort in the film The Day the Earth Stood Still

Fictional characters[edit]

See also[edit]