O&M


AcronymDefinition
O&MOperations & Maintenance
O&MOgilvy & Mather
O&MOperations and Management
O&MOrientation & Mobility
O&MOperation and Maintenance
O&MOrganization and Management
O&MOffshore & Marine
O&MOriginal and Mineral (haircare)
O&MObservation and Measurement
O&MOwens & Minor (Fortune 500 company)
O&MOceanography and Meteorology
O&MOrganization & Methods
O&MOutline and Mounting
O&MOhio and Mississippi Railroad
O&MOzy & Millie (comic)
O&MOperator & Maintainer