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RN or Rn may stand for:

Businesses and organizations[edit]


Science, technology, and mathematics[edit]

  • rn (newsreader), a Usenet news client
  • Radon (symbol Rn), a chemical element
  • Registered nurse, a licensed healthcare provider
  • Round nose, a type of bullet
  • Euclidean space with n dimensions, denoted by or
  • Newline, represented as \r\n in certain operating systems

Other uses[edit]