| Acronym | Definition |
|---|
| MRN➣Motor Racing Network |
| MRN➣Message Reference Number |
| MRN➣Multi Region Network |
| MRN➣Me Right Now |
| MRN➣Medical Record Number |
| MRN➣Movement Reference Number (shipping) |
| MRN➣Mind Research Network (neuroscience) |
| MRN➣Missouri Recovery Network (est. 1999) |
| MRN➣Magnetic Resonance Neurography |
| MRN➣Migrants' Rights Network (UK) |
| MRN➣Mister Rogers' Neighborhood (TV show) |
| MRN➣Multi-Region Network (switching technology) |
| MRN➣Most Responsible Nurse |
| MRN➣Money Recovery Nationwide (collection agency) |
| MRN➣Material Receiving Note |
| MRN➣Medicare Remittance Notice |
| MRN➣Mobile Random Network |
| MRN➣Matières Radioactives Naturelles |
| MRN➣Meteorological Rocket Network |
| MRN➣Missions Resource Network (Bedford, TX) |
| MRN➣Manufacturers Resource Network |
| MRN➣Movimiento de Renovación Nacional (Spanish: National Renovation Movement; Panama; also seen as MORENA) |
| MRN➣My Referral Network (website) |
| MRN➣Morgue Reference Number |
| MRN➣Material Return Note |
| MRN➣Mobile Robot Navigation |
| MRN➣Mouvement de la Reconstruction Nationale (French: Movement for National Reconstruction, Haiti) |
| MRN➣Movement Request Number |
| MRN➣Member Reference Number |
| MRN➣Mine Reference Number |
| MRN➣Mathura Refinery Nagar (Mathura, Indian Oil Corp.) |
| MRN➣Manufacturers Reference Number |
| MRN➣Ministère de Ressources Naturelles et de la Faune (French: Department of Natural Resources and Wildlife; Quebec, Canada) |
| MRN➣Merchant Repair Network (service technician registry) |
| MRN➣Maritime Rescue Network |