| Acronym | Definition |
|---|
| OCS➣Outer Continental Shelf |
| OCS➣Office Communications Server (Microsoft) |
| OCS➣Officer Candidate School |
| OCS➣Office of Community Services |
| OCS➣Office of Career Services |
| OCS➣Office of Coast Survey |
| OCS➣Overseas Courier Service |
| OCS➣Ontario Cannabis Store (Ontario, Canada) |
| OCS➣Office of Children's Services (Alaska) |
| OCS➣Okinawa Credit Service Co., Ltd. (Japan) |
| OCS➣Oral Corticosteroids |
| OCS➣Ocean Colour Scene (band) |
| OCS➣Orthopedic Clinical Specialist |
| OCS➣Oil-Contaminated Soil |
| OCS➣Oracle Collaboration Suite |
| OCS➣Organizations of Civil Society |
| OCS➣Orange County Schools (North Carolina) |
| OCS➣Office of Catholic Schools (various schools) |
| OCS➣Overhead Contact System |
| OCS➣Overhead Catenary System (power) |
| OCS➣Office of the Chief Scientist (various locations) |
| OCS➣Office Coffee Service |
| OCS➣Occupant Classification System |
| OCS➣Order Communication System |
| OCS➣Oaks Christian School (Westlake Village, CA) |
| OCS➣Ordinary Common Sense |
| OCS➣Only Child Syndrome |
| OCS➣Original Chip Set |
| OCS➣Oracle Content Services |
| OCS➣Online Charging System |
| OCS➣One Click Search |
| OCS➣Open Controls System |
| OCS➣Open Content Syndication |
| OCS➣Open Computer and Software |
| OCS➣Object Compatibility Standard |
| OCS➣Optimizing Control System |
| OCS➣Operator Communications Software |
| OCS➣Online Content Syndication |
| OCS➣Onboard Computer System |
| OCS➣Online Customer Support |
| OCS➣Online Command Server |
| OCS➣Online Community System |
| OCS➣on Chip Sequencer |
| OCS➣Original Chipset (Commodore Amiga computers) |
| OCS➣Obsessive-Compulsive Spectrum (psychology) |
| OCS➣Oklahoma Climatological Survey |
| OCS➣Orange County Supertones (band) |
| OCS➣On Course Side (sailboat racing) |
| OCS➣Oral Care Specialist (dentistry) |
| OCS➣Operator Control Station |
| OCS➣Office of Cancer Survivorship (National Cancer Institute) |
| OCS➣Optical Control System |
| OCS➣Organized Crime Section (various organizations) |
| OCS➣Old Church Slavonic (extinct liturgical language; aka Old Church Slavic) |
| OCS➣Orthogonal Curvilinear Coordinate System |
| OCS➣On the Course Side (sailing, starting line) |
| OCS➣Online Charging System (commerce software) |
| OCS➣Online Car Show (est. 2004) |
| OCS➣Organizational Culture Survey (various companies) |
| OCS➣Online Customer Service |
| OCS➣Officer Cadet School |
| OCS➣Open Content Syndication (XML format) |
| OCS➣Onboard Control System (US NASA) |
| OCS➣Office of Crime Statistics |
| OCS➣Operational Control System |
| OCS➣Order Control System |
| OCS➣Open Channel Solutions (Australia) |
| OCS➣Office of the Chief of Staff (US Army) |
| OCS➣Outbound Contact Solution |
| OCS➣Originating Call Screening |
| OCS➣Office Car Special (various companies) |
| OCS➣Office of the Chief Statistician (UK) |
| OCS➣Offshore Constitutional Settlement (Australia) |
| OCS➣Offensive Counterspace |
| OCS➣Optimum Class Size |
| OCS➣Off-Campus Student |
| OCS➣On Campus Suspension |
| OCS➣Open Cluster Stack (computing) |
| OCS➣Openconnect Systems |
| OCS➣One-Coat Stucco |
| OCS➣Obstacle Clearance Surface (aviation) |
| OCS➣Office of Conference Services (various universities) |
| OCS➣On-Card Sequencer |
| OCS➣Outback Champions Series (tennis) |
| OCS➣Online Consultation Service |
| OCS➣Overseas Citizens Service |
| OCS➣Obsessive-Compulsive Syndrome |
| OCS➣Old Chipset (Commodore Amiga computers) |
| OCS➣Observatory Carl Sagan (University of Sonora; Mexico) |
| OCS➣Ophthalmic Coding Specialist |
| OCS➣On-Line Comparison System |
| OCS➣Ocean Color Scanner |
| OCS➣On Company Service |
| OCS➣Onboard Computer System (Russian) |
| OCS➣Oil Companies School (Libya) |
| OCS➣Oceanic Control System (air traffic management system used by Airways Corporation of New Zealand Ltd) |
| OCS➣Ojemann Cortical Stimulator (Integra) |
| OCS➣Offering Circular Supplement (bond drafting document) |
| OCS➣Orange County Speaker (Garden Grove, CA) |
| OCS➣Offender Communication System (Digital Solutions, Inc.; correctional system inmate phone system) |
| OCS➣Oldtimer Club Stokkem (automobile club; Dilsen-Stokkem, Belgium) |
| OCS➣Orbit Control Subsystem |
| OCS➣Officer Conducting the Serial |
| OCS➣Optical Character Scanner |
| OCS➣Office of the Corporate Secretary (Canada) |
| OCS➣Optical Control Subsystem |
| OCS➣Osteopathic Clinical Skills |
| OCS➣Occupation Control System (railway) |
| OCS➣Overload Control Subsystem |
| OCS➣Operational Case Study |
| OCS➣Office of Cyberspace Security (US White House) |
| OCS➣Office of Communication Systems |
| OCS➣Oil Company of Spain, SA |
| OCS➣Oxygen Cost Score |
| OCS➣Office of Compensatory Services (Special Education, Baltimore City Public School System) |
| OCS➣One-Cylindrical Stack (capacitor with high dielectric constant) |
| OCS➣Operational Capability Demonstration |
| OCS➣Overhead Catenary/Collector System (transit) |
| OCS➣Orbit Circularization System |
| OCS➣Optical Communications Supplement (IEEE) |
| OCS➣Optical Channel States (Lucent) |
| OCS➣Operations Communications System |
| OCS➣Operation and Control Simulator |
| OCS➣Office on Contract Settlement |
| OCS➣Optical Crossconnect System |
| OCS➣Outstation Communication Subsystem |
| OCS➣Oregon Cascade Symphony |
| OCS➣Oeuvre des Colonies Scolaires (French: Works of Colony Schools) |
| OCS➣Ordinary Circular Slot |