| CMO | Calculated Mean Organism 
| Others |
| CMO | Campaign Monitor and Optimization
| Others |
| CMO | Canadian Mathematical Olympiad
| Others |
| CMO | Canonical Molecular Orbital
| Others |
| CMO | Care Management Organizations
| Others |
| CMO | Career Medical Officer
| Others |
| CMO | Caribbean Meteorological Organization
| Others |
| CMO | Carpathian Mountain Outreach
| Others |
| CMO | Case Management Organization
| Others |
| CMO | Cash Management Online
| Others |
| CMO | Casual Multiplayer Online
| Others |
| CMO | Catholic Men Organization
| Others |
| CMO | Center for Molecular Oncology
| Others |
| CMO | Central MASINT (Measurement And Signature INTelligence) Organization
| Others |
| CMO | Central Merchandising Office
| Others |
| CMO | Central Money-markets Office
| Others |
| CMO | Certificate Management Office
| Others |
| CMO | Certificate Management Offices
| Others |
| CMO | Charter Management Organization
| Others |
| CMO | Cheap Marketing Officer
| Others |
| CMO | Check Me Out
| Others |
| CMO | Chef Marketing Officer
| Others |
| CMO | Chi Mei Optoelectronics
| Others |
| CMO | Chicago, St. Paul, Minneapolis and Omaha Railway (Union Pacific Railroad)
| Others |
| CMO | Chief Management Officer
| Others |
| CMO | Chief Marketing Office
| Others |
| CMO | Chief Marketing Officer
| Designation / Rank, Marketing |
| CMO | chief marketing officer's
| Others |
| CMO | Chief Marketing Officers
| Others |
| CMO | Chief Meaning Officer
| Others |
| CMO | Chief Media Officer
| Others |
| CMO | Chief Medical Officer
| Designation / Rank, Medical |
| CMO | Chief Medical Official
| Others |
| CMO | Chief Military Observer
| Others |
| CMO | Chief Minister's Office
| Others |
| CMO | Chief Mommy Officer
| Others |
| CMO | Chief Motivational Officer
| Others |
| CMO | Civil-Military Operations
| Others |
| CMO | Clinical Medical Officer
| Others |
| CMO | Collateralized Mortgage Obligation
| Others |
| CMO | Collateralized mortgage obligations
| Others |
| CMO | Collection Management Office
| Others |
| CMO | Collective Management Organization
| Others |
| CMO | College of Midwives of Ontario
| Others |
| CMO | Comfort Measures Only
| Others |
| CMO | Commercial Market Outlook
| Others |
| CMO | Commercial Microwave Organization
| Others |
| CMO | Commodore's Messenger Organization
| Others |
| CMO | Commodores Messenger Organization
| Others |
| CMO | Compact Massive Object
| Others |
| CMO | Competitive Medical Organisation
| Others |
| CMO | Configuration Management Office
| Others |
| CMO | Container Movement Order
| Others |
| CMO | Continuous Media Object
| Others |
| CMO | Contract Management Officer
| Others |
| CMO | Contract Management Organization
| Others |
| CMO | Contract Manufacturing Operation
| Others |
| CMO | Contract Manufacturing Operations
| Others |
| CMO | Contract Manufacturing Organization
| Others |
| CMO | Contract Manufacturing Organizations
| Others |
| CMO | Contrucciones Metalicas de Obturacion
| Others |
| CMO | Conventional Mineral Oil
| Others |
| CMO | Convoy Movement Order
| Others |
| CMO | Corporate Money Offering
| Others |
| CMO | Course Materials Online
| Others |
| CMO | Court Martial Order
| Others |
| CMO | Cubic Mile Of Oil
| Others |
| CMO | Current Management Object
| Others |
| CMO | Current Market Outlook
| Others |
| CMO | Current Mode of Operation
| Others |
| CMO | Customer Material Order
| Others |
| CMO | Cyber Monsters Online
| Others |
| CMO | Cyclohexanone MonoOxygenase
| Others |
| CMO | Cystoid Macular Oedema
| Others |
| CMO | Obbia Airport
| Others |
| CMO | Obbia, Somalia
| Others |