| OCS | Oakland Christian School 
| Others |
| OCS | Object Compatibility Standard
| Others |
| OCS | Obsessive Compulsive Spectrum
| Others |
| OCS | Occupancy Control System
| Others |
| OCS | Occupancy Seat Sensor
| Others |
| OCS | Occupant Classification Sensor
| Others |
| OCS | Occupant Classification System
| Others |
| OCS | Occupation Control System
| Others |
| OCS | Occupational Course of Study
| Others |
| OCS | Ocean Climate Stations
| Others |
| OCS | OEM Computing Solution
| Others |
| OCS | of the Chief Scientist
| Others |
| OCS | Office Coffee Service
| Others |
| OCS | Office Communication System
| Others |
| OCS | Office Communications Server
| Others |
| OCS | Office of Cancer Survivorship
| Others |
| OCS | Office of Career Services
| Others |
| OCS | Office of Career Strategy
| Others |
| OCS | Office of Central Services
| Others |
| OCS | Office of Child Support
| Others |
| OCS | Office of Children's Services
| Others |
| OCS | Office of Coast Survey
| Others |
| OCS | Office of Community Services
| Others |
| OCS | Office of Cyber Security
| Others |
| OCS | Office of the Chief Scientist
| Others |
| OCS | Officer Cadet School
| Others |
| OCS | Officer Candidate
| Others |
| OCS | Officer Candidate School
| Others |
| OCS | Officer Candidates School
| Others |
| OCS | Officer Commanding Police Station
| Others |
| OCS | Officers' Candidate School
| Others |
| OCS | Oil Change Schedule
| Others |
| OCS | Oil Change Service
| Others |
| OCS | Oil Change Sticker
| Others |
| OCS | Oil Control System
| Others |
| OCS | Oklahoma Christian School
| Others |
| OCS | Oldsmobile Cutlass Supreme
| Others |
| OCS | Oldtimer Club Salz
| Others |
| OCS | Oldtimer Club Saurer
| Others |
| OCS | Olori Construction Services
| Others |
| OCS | Omaha Catholic Schools
| Others |
| OCS | Omni Computer Services
| Others |
| OCS | OmniAir Certification Services
| Others |
| OCS | On Campus Session
| Others |
| OCS | On Chip Sequencer
| Others |
| OCS | On Course Side
| Others |
| OCS | On The Course Side
| Others |
| OCS | On-Chip Spectroscopy
| Others |
| OCS | On-line Charging System
| Others |
| OCS | Onboard Computer System
| Others |
| OCS | One Click Search
| Others |
| OCS | One Click Services
| Others |
| OCS | One Complete Solution
| Others |
| OCS | One Config Simple
| Others |
| OCS | One Corporate System
| Others |
| OCS | Online Car Show
| Others |
| OCS | Online Certification System
| Others |
| OCS | Online Charging System
| Others |
| OCS | Online Class S**ks
| Others |
| OCS | Online Command Server
| Others |
| OCS | Online Comment System
| Others |
| OCS | Online Community System
| Others |
| OCS | Online Conference Service
| Others |
| OCS | Online Content Syndication
| Others |
| OCS | Online Course Selection
| Others |
| OCS | Online Customer Service
| Others |
| OCS | Online Customer Support
| Others |
| OCS | Only Child Syndrome
| Others |
| OCS | Only Christ Saves
| Others |
| OCS | Onondaga Central School
| Others |
| OCS | Onondaga Central Schools
| Others |
| OCS | Onslow County Schools
| Others |
| OCS | Ontario Construction Secretariat
| Others |
| OCS | Ontario Crime Syndicate
| Others |
| OCS | Opel Club Sweden
| Others |
| OCS | Open C*nt Shot
| Others |
| OCS | Open Collaboration Services
| Others |
| OCS | Open Computer and Software
| Others |
| OCS | Open Conference System
| Others |
| OCS | Open Content Syndication
| Others |
| OCS | Open Control System
| Others |
| OCS | Open Controls System
| Others |
| OCS | Operation Clean Sweep
| Others |
| OCS | Operational Combat Series
| Others |
| OCS | Operational Contract Support
| Others |
| OCS | Operator Communications Software
| Others |
| OCS | Opposition Caught Stealing
| Others |
| OCS | Optical Calibration Sphere
| Others |
| OCS | Optical Control System
| Others |
| OCS | Optical Convergence Switch
| Others |
| OCS | Optimized Cross Section
| Others |
| OCS | Optimizing Control System
| Others |
| OCS | Optimum Computer Solutions
| Others |
| OCS | Oracle Collaboration Suite
| Others |
| OCS | Oracle Collaborative Support
| Others |
| OCS | Oracle Consulting Services
| Others |
| OCS | Oracle Content Services
| Others |
| OCS | Oracle Corporate System
| Others |
| OCS | Oral Contraceptive Steroid
| Others |
| OCS | Oregon Climate Service
| Others |
| OCS | Organic Content Standard
| Others |
| OCS | Original Chip Set
| Others |
| OCS | Orinoka Crash
| Others |
| OCS | Orphan Car Show
| Others |
| OCS | Orthopaedic Certified Specialist
| Others |
| OCS | Orthopedic Certified Specialist
| Others |
| OCS | Orthopedic Clinical Specialist
| Others |
| OCS | Other Cool Stuff
| Others |
| OCS | Ouachita Christian School
| Others |
| OCS | Ouachita Christian Schools
| Others |
| OCS | Our Children s
| Others |
| OCS | Outer Continental Shelf
| Others |
| OCS | Outlander Club Singapore
| Others |
| OCS | Output Control Software
| Others |
| OCS | Oval Contact System
| Others |
| OCS | Overall Operating Control System
| Others |
| OCS | Overdrive Cancel Switch
| Others |
| OCS | Overnight Comparison System
| Others |
| OCS | Overnight Courier Service
| Others |
| OCS | overseas Chinese Scholars
| Others |
| OCS | Overseas Courier Service
| Others |
| OCS | Owl Correspondence School
| Others |
| OCS | Oxford Conception Study
| Others |