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Opt or OPT may refer to:



See also[edit]

  • Opt-out, to avoid receiving unsolicited product or service information
  • Opting out, a political expression in Canada, describing the intention of a province to remove itself from a program administered by the federal government
  • Opt in email, the option to receive bulk e-mail
  • ORT (disambiguation), an acronym in Russian and Greek which appears like OPT