| OOC | Ober Oil Company 
| Others |
| OOC | Object Oriented C
| Others |
| OOC | Object Oriented Concept
| Others |
| OOC | Odyssey Owners Club
| Others |
| OOC | Office of Compliance
| Others |
| OOC | Office Of Comptroller
| Others |
| OOC | Office of the Controller
| Others |
| OOC | Official Observer Corps
| Others |
| OOC | Offshore Operators Committee
| Others |
| OOC | Ogden Outdoor Coalition
| Others |
| OOC | Ohio Oil Company
| Others |
| OOC | Ohio Organizing Collaborative
| Others |
| OOC | Olympics Organizing Committee
| Others |
| OOC | Oman Oil Company
| Others |
| OOC | Only One Criteria
| Others |
| OOC | Opel Omega Club
| Others |
| OOC | Opel Owners Club
| Others |
| OOC | Open Online Class
| Others |
| OOC | Open Online Course
| Others |
| OOC | Operational Oceanography Center
| Others |
| OOC | Operational Oversight Committee
| Others |
| OOC | Opielok Offshore Carriers
| Others |
| OOC | Optical Orthogonal Code
| Others |
| OOC | Optimizing Oberon Compiler
| Others |
| OOC | Order Of Chaos
| Others |
| OOC | Order Of Conditions
| Others |
| OOC | Original Or Copy
| Others |
| OOC | Orthokeratinized Odontogenic Cyst
| Others |
| OOC | Our Oceans Challenge
| Others |
| OOC | Out of Camera
| Others |
| OOC | Out Of Carpet
| Others |
| OOC | Out Of Cash
| Others |
| OOC | Out Of Center
| Others |
| OOC | Out Of Charcater
| Others |
| OOC | Out of charcter
| Others |
| OOC | Out Of City
| Others |
| OOC | Out Of Clan
| Others |
| OOC | Out Of Combat
| Others |
| OOC | Out Of Commission
| Others |
| OOC | Out Of Competition
| Others |
| OOC | Out Of Conference
| Others |
| OOC | Out Of Context
| Others |
| OOC | Out Of Continuity
| Others |
| OOC | Out Of Control
| Others |
| OOC | Out Of Core
| Others |
| OOC | Out of Course
| Others |
| OOC | Out Of Creating
| Others |
| OOC | Out Of Curiosity
| Others |
| OOC | Outlet Online Connection
| Others |