| Abbreviation | Definition |
|---|---|
| OM(CBER) | Office of Management (Center for Biologics Evaluation and Research) |
| OM(CDER) | Office of Management (Center for Drug Evaluation and Research) |
| OM(CVM) | Office of Management (Center for Veterinary Medicine) |
| OM(OC) | Office of Management (Immediate Office of the Commissioner) |
| OMB | Operations and Maintenance Branch |
| OMB(NCTR) | Operations and Maintenance Branch (NCTR) |
| OMO(CDRH) | Office of Management Operations (CDRH) |
| OMP | Office of Management Programs |
| OMP(CDER) | Office of Medical Policy (CDER) |
| OMP(OC) | Office of Management Programs (OC) |
| OMRF | Oklahoma Medical Research Foundation |
| OMS(CFSAN) | Office of Management Systems (CFSAN) |
| OMS(NCTR) | Office of Management Services (NCTR) |
| OMT | oral mucosal transudate |
| ONADE(CVM) | Office of New Animal Drug Evaluation (CVM) |
| ONC | Office of the National Coordinator for Health Information Technology |
| ONCHIT | Office of the National Coordinator for Health Information Technology |
| OND | Office of New Drugs |
| OND(CDER) | Office of New Drugs (CDER) |
| OND(CDER) | Office of New Drugs (Center for Drug Evaluation and Research) |