| Abbreviation | Definition |
|---|---|
| OQE | Office of Quality Evaluation |
| OQM | Office of Quality Management |
| OQP | Office of Quality Programs |
| OQR | Office of Quality Review |
| OQS | Office of Quality Services |
| OQS | Office of Quality Systems |
| OQT | Office of Quality Technology |
| ORA | Office of Regulatory Affairs |
| ORA | Office Of Resource Assistance |
| ORA | Offshore Risk Assessment |
| ORACBA | Office of Risk Assessment and Cost-Benefit Analysis |
| ORCA | Online Representations and Certifications Application |
| ORD | National Institutes of Health Office of Rare Diseases |
| ORD | Office Of Research And Development |
| ORDAP | Orthopaedic and Rehabilitation Devices Advisory Panel |
| ORDCO | Office of Research and Development Communications Office |
| ORDP | Office of Rural Development Policy |
| ORDR | Office of Rare Diesease Research |
| ORHP | Office of Rural Health Policy |
| ORM | Other Regulated Materials |