| OCID | Object Clutter Indoor Dataset 
| Others |
| OCID | Object Cluttered Indoor Dataset
| Others |
| OCID | Obsessive Compulsive Interruption Disorder
| Others |
| OCID | Obsessive Compulsive Israel Disorder
| Others |
| OCID | Ohio Centers for Intellectual Disabilities
| Others |
| OCID | Online Chemical Inventory Database
| Others |
| OCID | Open Container Initiative Daemon
| Others |
| OCID | Operational Clinical Infectious Disease
| Others |
| OCID | Orange Cove Irrigation District
| Others |
| OCID | Oregon Coalition of Interdisciplinary Databases
| Others |
| OCID | Organised Crime Investigation Division
| Others |
| OCID | Organized Crime and Investigations Division
| Others |
| OCID | Organized Crime Intelligence Division
| Others |
| OCID | Organized Crime Investigation Division
| Others |
| OCID | Organized Crime Investigations Division
| Others |
| OCID | Organized Crimes Investigation Division
| Others |