What is "mrn"

MRN may refer to:

• Arab Mashreq International Road Network
• Magnetic resonance neurography, a medical imaging technique
• Material Receipt Note
• Median raphe nucleus, area within the brain
• Migrants Rights Network, a London-based non-governmental organisation
• Mister Rogers' Neighborhood, an American children's television series
• Motor Racing Network, the principal radio broadcasting operation of auto racing organization NASCAR
• Mre11-Rad50-Nbs1, a protein complex involved in DNA repair in mammals
• Foothills Regional Airport (was Morganton-Lenoir Airport), IATA airport code
• The Mind Research Network, a brain research facility to be based in New Mexico
• Team MRN, a League of Legends e-Sports team
• Medical Record Number