| Abbreviation | Definition |
|---|---|
| ODS | Office of Dietary Supplements " |
| ODSIR | Office of Drug Security, Integrity, and Rec |
| OEA | Office of Economic Analysis |
| OEA | Office of Education Accountability |
| OEC | Offshore Engineered Components |
| OEC | Overall Evaluation Criterion |
| OED | Office Of Economic Development |
| OED | Oxford English Dictionary |
| OEE | Office of Environmental Education |
| OEH | Office of Environmental Health |
| OEH&S | Office of Environmental Health & Safety |
| OEO | Office of Equal Opportunity |
| OEOB | Old Executive Office Building |
| OEPNU | Office of Energy Policy and New Uses |
| OER | Office of Extramural Research |
| OERI | Office of Educational Research and Improvement |
| OES | Occupational Employment Statistics |
| OESE | Office of Elementary and Secondary Education |
| OET | Office of Educational Technology |
| OET | Office of Engineering and Technology |