| Abbreviation | Definition |
|---|---|
| OIG | Office of the Inspector General |
| OIM | Office of Information Management |
| OIP | Office of International Programs |
| OIP(OC) | Office of International Programs (OC) |
| OIT(CBER) | Office of Information Technology (Center for Biologics Evaluation and Research) |
| OIT(CDER) | Office of Information Technology (Center for Drug Evaluation and Research) |
| OIT(CDRH) | Office of Information Technology (Center for Devices and Radiological Health) |
| OIT(CFSAN) | Office of Information Technology (Center for Food Safety and Applied Nutrition) |
| OIT(CVM) | Office of Information Technology (Center for Veterinary Medicine) |
| OIT(NCTR) | Office of Information Technology (National Center for Toxicological Research) |
| OIT(OC) | Office of Information Technology (Immediate Office of the Commissioner) |
| OIT(ORA) | Office of Information Technology (Office of Regulatory Affairs) |
| OITSS(OC) | Office of Information Technology Shared Services (Immediate Office of the Commissioner) |
| OIVD | Office of In-Vitro Diagnostic Device Evaluation and Safety |
| OIVD(CDRH) | Office of In Vitro Diagnostic Device Evaluation and Safety (CDRH) |
| OJDB | Orthopedic Joint Devices Branch |
| OJDB(CDRH) | Orthopedic Joint Devices Branch (CDRH) |
| OLA(OC) | Office of Legislative Affairs (Office of the Commissioner) |
| OLCA | Office of Legislative and Congressional Affairs |
| OLE | Object Linking and Embedding |