| MOC | Maintenance Of Certification 
| Others |
| MOC | Maintenance of Certification.
| Others |
| MOC | Maintenance Operational Check
| Others |
| MOC | Maintenance Operations Center
| Others |
| MOC | Major Operation Center
| Others |
| MOC | Make Others Cash
| Others |
| MOC | Managed Object Class
| Others |
| MOC | Management and Operations Council
| Others |
| MOC | Management Of Change
| Others |
| MOC | Managerial and Organizational Cognition
| Others |
| MOC | Mandatory Obstacle Completion
| Others |
| MOC | Mandatory Obstascle Completion
| Others |
| MOC | Manufacturing Outreach Center
| Others |
| MOC | Maranatha Organisation of Cambodia
| Others |
| MOC | Marathon Oil Co.
| Others |
| MOC | Marcos Owners Club
| Others |
| MOC | Maritime Operations Center
| Others |
| MOC | Market On Close
| Others |
| MOC | Market Operations Center
| Others |
| MOC | Marketing-Oriented Company
| Others |
| MOC | Marriage Of Convenience
| Others |
| MOC | Mars Orbital Camera
| Others |
| MOC | Mars Orbiter Camera
| Others |
| MOC | Mass Open Cloud
| Others |
| MOC | Massachusetts Open Cloud
| Others |
| MOC | Master Of Computer gaming
| Others |
| MOC | Master Of Concentration
| Others |
| MOC | Master Operational Controller
| Others |
| MOC | Masters Of Chaos
| Others |
| MOC | Material Of Construction
| Others |
| MOC | Materials Of Construction
| Others |
| MOC | Materials, Organizing, and Communication
| Others |
| MOC | Mazda Owners Club
| Others |
| MOC | Means Of Compliance
| Others |
| MOC | Mechanism Operated Cell
| Others |
| MOC | Media Operations Center
| Others |
| MOC | Mediterranean Orienteering Championship
| Others |
| MOC | Meetjeslandse Oldtimer Club
| Others |
| MOC | Member Of the Conclave
| Others |
| MOC | Members Of Coruscant
| Others |
| MOC | Memorandum of Cooperation
| Others |
| MOC | Men Of Character
| Others |
| MOC | Mercedes Owners Club
| Others |
| MOC | Merchants Of Chaos
| Others |
| MOC | Meridional Overturning Circulation
| Others |
| MOC | Messengers Of Christ
| Others |
| MOC | Messerschmitt Owners Club
| Others |
| MOC | Meta Object Compiler
| Others |
| MOC | Meteorological Operational Capability
| Others |
| MOC | Methods of Cleaning
| Others |
| MOC | Metro Owners Club
| Others |
| MOC | Miata Owners Club
| Others |
| MOC | Micro-Ordering Center
| Others |
| MOC | Microeconomics of Competitiveness
| Others |
| MOC | Microsoft Office Communicator
| Others |
| MOC | Microsoft Office Compatibility
| Others |
| MOC | Microsoft Official Course
| Others |
| MOC | Microsoft Official Curriculum
| Others |
| MOC | Microwave Obscurant Chaff
| Military, Air Force, Defence, Navy, Weapon, Chemistry, Chemical Compound, Technology, Satellite Technology |
| MOC | Mid Oriental Classics
| Others |
| MOC | Mile Of Cars
| Others |
| MOC | Mileage Odometer Correction
| Others |
| MOC | Militare Ordine del Collare
| Others |
| MOC | Military Operations Command
| Others |
| MOC | Military Order of the Cootie
| Others |
| MOC | Mini One Convertible
| Others |
| MOC | Mini Owners Club
| Others |
| MOC | Ministry Of Clothing
| Others |
| MOC | Ministry of Coffee
| Others |
| MOC | Ministry Of Communications
| Others |
| MOC | Minnesota Olds Club
| Others |
| MOC | Mint On Card
| Others |
| MOC | Mission Operations Center
| Others |
| MOC | Missouri Central Railroad
| Others |
| MOC | Mitochondria Operated Channel
| Others |
| MOC | Mitsubishi Owners Club
| Others |
| MOC | Mobile Office Card
| Others |
| MOC | Mobile Operations Center
| Others |
| MOC | Mobile Originated Call
| Others |
| MOC | Mobile Originating Call
| Others |
| MOC | Mobile Outdoor Cases
| Others |
| MOC | Moby Object Calculus
| Others |
| MOC | Monarchs Own Companion
| Others |
| MOC | Montachusett Opportunity Council
| Others |
| MOC | Montbell Outdoor Challenge
| Others |
| MOC | Montclair Operetta Club
| Others |
| MOC | Monte Carlo
| Others |
| MOC | Montes Claros, Minas Gerais, Brazil
| Others |
| MOC | Monthly Original Character
| Others |
| MOC | Mopar Owner Connect
| Others |
| MOC | Mopar Owners Club
| Others |
| MOC | Most Obvious Collection
| Others |
| MOC | Mother Of Child
| Others |
| MOC | Mother of Cutters
| Others |
| MOC | Mount Olive College
| Others |
| MOC | Movimiento de Objetores de Conciencia
| Others |
| MOC | Movimiento Obrero Cristiano
| Others |
| MOC | Mugging On Camera
| Others |
| MOC | Multiple On Capital
| Others |
| MOC | Municipal Oversight Committee
| Others |
| MOC | Museum Of the Confederacy
| Others |
| MOC | Music Of Class
| Others |
| MOC | Music On Console
| Others |
| MOC | Mustang Owners Club
| Others |
| MOC | My Own Committee
| Others |
| MOC | My Own Creation
| Others |