MRN

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 Moorabbin railway station,

TV Shows Mister Rogers' Neighborhood