| OCIS | Ocean City Intermediate School 
| Others |
| OCIS | Off Campus Independent Study
| Others |
| OCIS | Office of Central and Information Services
| Others |
| OCIS | Office of Computing and Information Services
| Others |
| OCIS | Office of Court Interpreter Services
| Others |
| OCIS | Office of Court Interpreting Services
| Others |
| OCIS | Ohio Career and Information System
| Others |
| OCIS | Ohio Career Information System
| Others |
| OCIS | Oncology Clinical Information Systems
| Others |
| OCIS | Open Caesar Interactive Simulator
| Others |
| OCIS | OPERA Customer Information System
| Others |
| OCIS | Operator Certification Information System
| Others |
| OCIS | Optics Classification and Indexing Scheme
| Others |
| OCIS | Organizational Communication and Information Systems
| Others |
| OCIS | Organizational Communication Information Systems
| Others |
| OCIS | Organized Crime Information System
| Others |
| OCIS | Oxford Centre for Islamic Studies
| Others |