MRN may refer to:

Businesses and organizations

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Military

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  • AN/MRN-1, an instrument approach localizer used by the U.S. Army Air Force during and after World War II
  • AN/MRN-2, a radio range set used by the U.S. Army Air Force during and after World War II
  • AN/MRN-3, a marker beacon set used by the U.S. Army Air Force during and after World War II

Science

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Other uses

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TV Shows

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