MRO
MRO stands for:
- Magdalena Ridge Observatory , an observatory in the US state of New Mexico
- Main refinancing operation, a monetary policy instrument of the European Central Bank, see main refinancing instrument
- Maintenance, repair and operations , indirect requirements in the production of an industrial company
- Maintenance, repair and overhaul , aircraft maintenance, see aircraft maintenance #MRO Consultants
- Mars Reconnaissance Orbiter , a NASA spacecraft
- Until the currency reform in December 2017, the currency code ( ISO 4217 ) for Ouguiya , the currency of Mauritania.
- Rosenheim station , as an operating point abbreviation
- Mitochondria- like organelle , English mitochondrion-related organelle , see endosymbiont theory: MROs
