| Abbreviation | Definition |
|---|---|
| OTL | Office of Technology Licensing |
| OTM | Office of Technology Management |
| OTP | Office of Telecommunications Policy |
| OTQ | Office of Total Quality |
| OTS | Office of Thrift Supervision |
| OTSS | Office of Technical Support Services |
| OTT | Office of Technology Transfer |
| OTT | Office of Transportation Technologies |
| OTT | Office of Transportation Technologies ( Department of Energy) |
| OTU | Office of Technology Utilization |
| OTY | Other Than Yearly |
| OUF | Office of Unclaimed Funds |
| OUST | Office of Underground Storage Tanks |
| OVAC | Overseas Visual Aids Center |
| OVAE | Office of Vocational and Adult Education |
| OVC | Office for Victims of Crime |
| OVV | Office of Vietnam Veterans |
| OWBO | Office of Women's Business Ownership |
| OWCP | Office of Workers' Compensation Programs |
| OWD | Office of Workforce Development |