| Acronym | Definition |
|---|
| MRO➣Maintenance, Repair and Overhaul |
| MRO➣Medical Review Officer (test result interpretation) |
| MRO➣Mars Reconnaissance Orbiter |
| MRO➣Mauritanian Ouguiya (ISO currency code) |
| MRO➣Marathon Oil Corporation (stock symbol) |
| MRO➣Murchison Radio-Astronomy Observatory (Australia) |
| MRO➣Motorcycle Rights Organization |
| MRO➣Midwest Reliability Organization (Roseville, MN) |
| MRO➣Method Resolution Order (Python programming language) |
| MRO➣Maintenance Repair Organization (aircraft) |
| MRO➣Maintenance, Repair & Operations |
| MRO➣Machine Repair Option |
| MRO➣Multi Region Option |
| MRO➣Memory Read Out |
| MRO➣Maintenance Repair and Operating |
| MRO➣Multi Region Operation |
| MRO➣Market Research Online |
| MRO➣Mad River Outfitters (Columbus, OH) |
| MRO➣Mountains and Rivers Order (Zen Buddhism) |
| MRO➣Motor Racing Outreach (ministry for NASCAR drivers & crews) |
| MRO➣Market Research Organization (various locations) |
| MRO➣Magdalena Ridge Observatory |
| MRO➣Mandal Revenue Officer (India) |
| MRO➣Mobile Repayment Option |
| MRO➣Medical Records Online (King of Prussia, PA) |
| MRO➣Midwest Regional Office (Illinois) |
| MRO➣Materiel Release Order |
| MRO➣Material Release Order |
| MRO➣Mission Radio Operator |
| MRO➣Main Refinancing Operation (European Central Bank) |
| MRO➣Maximum-Random Overlap (meteorology) |
| MRO➣Memory Readout (US NASA) |
| MRO➣Medical Review Official |
| MRO➣Mini Racing Online (computer game) |
| MRO➣Men's Rights Online (website) |
| MRO➣Mandatory Removal Offense (US) |
| MRO➣Melbourne Research Office (University of Melbourne; Melbourne, Australia) |
| MRO➣Medical Regulating Office(r) |
| MRO➣Ministry Records Officer (Canada) |
| MRO➣Maintenance Repair Order |
| MRO➣Marine Reported On (US DoD) |
| MRO➣Manufacturer's Representative Organization |
| MRO➣Manchester Recorder Orchestra (Manchester, England) |
| MRO➣Material Related Overhead |
| MRO➣Monster Ranch Online (gaming) |
| MRO➣Mentally Retarded Offender (law enforcement) |
| MRO➣Materials Requisition Order |
| MRO➣Manhattan Recorder Orchestra (New York) |
| MRO➣Mendip Rescue Organisation (UK) |
| MRO➣Maintenance, Repair & Operating/Operations |
| MRO➣Machine Repair Operation |
| MRO➣Motor Route Order Number |
| MRO➣Military Response Option |
| MRO➣Message Releasing Officer |
| MRO➣Medical Readiness Officer |
| MRO➣Multiresistant Organism |
| MRO➣Movement Report Officer |
| MRO➣Monthly Routine Order |
| MRO➣Multi-Region Operation/Option |
| MRO➣Maintenance, Repair and Office Supply |
| MRO➣Mid-Range Objective |