Alphabetical Listing of Uncategorized Acronyms
- OCO — Oort Cloud Object
- OCOKA — Observation
- OCR — Optical Character Recognition
- OCS — See Entry
- OD — Old Dragon – Ordnance Datum (nautical Charts) -Overdose
- ODAS — OCA-DLR Asteroid Survey
- ODB — Operational Data Base -Oxford Dictionary of Byzantium
- ODBC — Open DataBase Connectivity
- OEA — (U.S.) Office of Economic Adjustment
- OECD — Organization For Economic Co-operation And Development (international)
- OED — Oxford English Dictionary
- OEG — Operation Exposure Guidance
- OEM — Original Equipment Manufacturer
- OFA — Occipital Face Area
- OFDA — U.S. AID?s Office of Foreign Disaster Assistance
- OGC — Open Geospatial Consortium
- OGD — Other Government Department
- OGO — Other Government Organization
- OGX — OUARGLA -a Petrolium State In The South of Algeria
- OH — Ohio (postal Symbol)
- OHC — OverHead-Cam Engine
- OHHLA — Original Hip-Hop Lyrics Archive
- OHIP — Ontario Health Insurance Plan
- OHP — Observatoire De Haute-Provence
- OHSS — Ovarian Hyperstimulation Syndrome
- OIC — Officer In Charge
- OIE — World Organisation For Animal Health (originally The Office International Des ?pizooties
- OIF — Operation Iraqi Freedom
- OIOC — Oriental & India Office Collections (in The British Library)
- OJ — Orange Juice – O.J. Simpson
- OJ — Anishinaabe Language (Ojibwa) (ISO 639-1 Code)
- OJI — Anishinaabe Language (Ojibwa) (ISO 639-2 Code)
- OJT — On-the-Job Training
- OK — Oklahoma (postal Symbol) -oll Korrect (facetious Alteration of All Correct
- OLED — Organic Light-Emitting Diode
- OLS — Operational Linescan System
- OM — Oman (ISO 3166 Digram)
- OM — Oromo Language (ISO 639-1 Code)
- OMA — Open Mobile Alliance – Operations & Maintenance
- OMB — U.S. Office of Management And Budget – Ontario Municipal Board -Order of Mapungubwe In Bronze
- OMD — Orchestral Manoeuvres In The Dark (1980s Pop Group)
- OME — Osaka Mercantile Exchange
- OMG — Object Management Group – Oh
- OMN — Oman (ISO 3166 Trigram)
- OMP — Order of Mapungubwe In Platinum
- OMR — Omani Rial (ISO 4217 Currency Code)
- OMS — Order of Mapungubwe In Silver
- OMT — Object Model Template
- ON — Ontario (postal Symbol)
- ONC — Orthopaedic Nurse Certified
- ONCE — Organizaci›n Nacional De Ciegos Espa?oles (Spanish
- ONI — (U.S.) Office of Naval Intelligence
- ONS — Operational Needs Statement
- ONRA — Office National D’?tudes Et De Recherches A?rospatiales (French
- OO — Object Oriented – Over & Out
- OOAD — Object Oriented Analysis And Design
- OOCL — Orient Overseas Container Line
- OODA — Observation
- OOO — Out of The Office
- OOP — Object-Oriented Programming – Out of Print
- OOS — Occupational Overuse Syndrome – OneSAF Objective System – Open Operating System – Out of Service
- OOTW — Operations Other Than War
- OP — Observation Point/Post
- OP CIT — Opere Citato (Latin
- OPA — Other Procurement
- OPAC — Online Public Access Catalogue
- OPCON — Operational Control
- OPCW — Organization For The Prohibition of Chemical Weapons
- OPEC — Organization of Petroleum Exporting Countries
- OPFOR — Opposing Force
- OPI — Office of Primary Interest – Open Prepress Interface
- OPINTEL — Operational Intelligence
- OPLAN — Operation Plan (also OpPlan)
- OPORD — Operation Order
- OPP — Ontario Provincial Police – Operational Planning Process – Other People’s Privates
- OPS — Operations
- OPSEC — Operations Security – Open Platform For Security
- OPSI — Overwhelming Post Splenectomy Infection – UK Office of Public Sector Information
- OPTAR — Operational Target
- OPV — Offshore Patrol Vessel
- OR — Operating Room (surgery) – Operational/Operations Research -Oregon (postal Symbol)
- OR — Oriya Language (ISO 639-1 Code)
- ORAU — Oak Ridge Associated Universities
- ORB — #NAME?
- ORBAT — Order of Battle
- ORD — Office of Research And Development – Operational Requirements Document
- ORD — O’hare International Airport In Chicago
- ORF — Operational Readiness Float
- ORI — Oriya Language (ISO 639-2 Code)
- ORISE — Oak Ridge Institute For Science And Education
- ORM — Oromo Language (ISO 639-2 Code)
- ORNL — Oak Ridge National Laboratory
- ORR — Oak Ridge Reservation (U.S. DOE) – Office of Rail Regulation (UK Government) – Office of Refugee Resettlement – (CIA) Office of Research And Reports – Operational Readiness Rate – Operational Readiness Review
- ORSA — Oxacillin-resistant Staphylococcus Aureus – Operations Research Society of America
- OS — Osmium
- OS — Ossetic Language (ISO 639-1 Code)
- OSA — Order of St. Augustine
- OSCE — Organisation For Security And Cooperation In Europe
- OSD — U.S. Office of The Secretary of Defense
- OSDL — Open Source Development Labs