MRN may refer to:

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

TV Shows

• Mister Rogers' Neighborhood

This disambiguation page lists articles associated with the title MRN.
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