MRN
MRN may refer to:
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Businesses and organizations
- Macquarie Media (ASX: MRN), an Australian media company
- Michigan Radio Network, a satellite-distributed news service in Michigan, U.S.
- Migrants Rights Network, a London-based non-governmental organisation
- Motor Racing Network, the principal radio broadcasting operation of auto racing organization NASCAR
- National Regeneration Movement (Spanish: Movimiento Regeneración Nacional), a political party in Mexico
Military
- 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
- Magnetic resonance neurography, a medical imaging technique
- Median raphe nucleus, area within the brain
- MRN complex, a protein complex involved in DNA repair
Other uses
- Foothills Regional Airport, IATA airport code
- Major Road Network, a proposed classification of local authority roads in England
- Moorabbin railway station,