| Abbreviation | Definition |
|---|---|
| OFR | Open File Report |
| OFW | Overseas Foreign Workers |
| OGA | Other Government Agency |
| OGBS | Offshore Group of Banking Supervisors |
| OGC | Office of the General Counsel |
| OGD | Office of Generic Drugs |
| OGD | Open Government Data |
| OGD | Other Government Departments |
| OGE | Office of Government Ethics |
| OGF | Oracle Government Financials system |
| OGFP | Our Grand Federalequalestrian Party |
| OGG | Our Good Goal |
| OGT | Official Gazette of the United States Patent and Trademark Office |
| OGW | USGS Office of Ground Water |
| OH | Original Hostage |
| OHA | Office of Hearings and Appeals |
| OHA | Overseas Housing Allowance |
| OHC | Office of Handicapped Concerns |
| OHD | Occupational Health Dynamics |
| OHD | Office of Hydrologic Development |