| OCD | Discalced Carmelite Order 
| Others |
| OCD | Obsessive Cleaning Disorder
| Others |
| OCD | Obsessive Completion Distinction
| Others |
| OCD | Obsessive Complusive Disorder
| Others |
| OCD | Obsessive Compulsive Disorder
| Others |
| OCD | Obsessive Corgi Disorder
| Others |
| OCD | Obsessive Crazy Doctors
| Others |
| OCD | Obsessive Cullen Disorder
| Others |
| OCD | Obsessive-Compulsive Disorder
| Others |
| OCD | Obsessive–compulsive disorder
| Others |
| OCD | Obviously Corporate Dummies
| Others |
| OCD | Occupant Detection System
| Others |
| OCD | Ocean Chemistry Division
| Others |
| OCD | Off Chip Driver Calibration
| Others |
| OCD | Office of Child Development
| Others |
| OCD | Office of Civilian Defense
| Others |
| OCD | Oil Change Disorder
| Others |
| OCD | Oil Conservation Division
| Others |
| OCD | Old Cranky Dude
| Others |
| OCD | Oldsmobile Curved Dash
| Others |
| OCD | On Chip Debugging
| Others |
| OCD | One Click Deployment
| Others |
| OCD | Online Car Dealership
| Others |
| OCD | Ontario College Diploma
| Others |
| OCD | Operational Capability Development
| Others |
| OCD | Operational Concept Demonstration
| Others |
| OCD | Operational Concept Description
| Others |
| OCD | Operational Concept Document
| Others |
| OCD | Operations Coordination Department
| Others |
| OCD | Optical Cooperation Disability
| Others |
| OCD | Order of Carmelites Discalced
| Others |
| OCD | Orderwire Clock Distributor
| Others |
| OCD | Ordre des Cols Durs
| Others |
| OCD | Organized Crime Division
| Others |
| OCD | Oriental Circus Dancer
| Others |
| OCD | Original Champions of Design
| Others |
| OCD | Ortho Clinical Diagnostics
| Others |
| OCD | Osteochondritis Dissecans
| Others |
| OCD | Out of Cell Delineation
| Others |
| OCD | Outsanding Cute and Divine
| Others |
| OCD | Oxford Classical Dictionary
| Others |