| OCST |
Office Of Commercial Space Transportation |
| OCT |
Object Code Technology |
| OCTS |
Ocean Color And Temperature Scanner |
| OCTW |
Optical Communications Through The Shuttle Window |
| OCUR |
Opencable Unidirectional Receivers |
| OD |
Octal Dump |
| OD |
Orbit Determination |
| ODA |
Overseas Development Agency |
| ODA |
Official Development Assistance |
| ODAL |
Omnidirectional Approach Lighting System |
| ODAPS |
Oceanic Display and Processing Station |
| ODAS |
Onboard Data Acquisition System |
| ODB |
Operational Data Book |
| ODBC |
Open Database Connectivity |
| ODC |
Other Direct Charges |
| ODCDR |
Operational Data Delivery Services |
| ODDS |
Optical Discrimination Evaluation Study |
| ODES |
Orbit Determination Facility |
| ODF |
Object Definition File |
| ODF |
Office of Defects Investigation |
| ODI |
Outsourcing Desktop Initiative for NASA |
| ODIN |
Orbital Design Integration |
| ODIN |
Operational Display Procedure |
| ODIN |
Output Data Redundancy |
| ODP |
Ozone-Depletion Potential |
| ODP |
Ozone Depletion Potential |
| ODRAN |
Operational Drawing Revision Advance Notice |
| ODS |
Orbiter Docking System |
| ODS |
Organized Delivery System |
| ODU |
Output Display Unit |
| OE |
Operator Error |
| OEA |
Office of |
| OEAS |
Orbital Emergency Arresting System |
| OEB |
Organismic and Evolutionary Biology |
| OECD |
Organisation of economic Cooperation and development |
| OECD |
Organisation For Economic Co-operation And Development |
| OECI |
Organization of European Cancer Institutes |
| OECO |
Outboard Engine Cutoff |
| OED |
Oxford English Dictionary |
| OED |
Operations Evaluation Department |
| OEEC |
Organisation for European Economic Cooperation |
| OEM |
Original Equipment Manufacturer |
| OEP |
Operational Evolution Plan |
| OES |
Other Error Sources |
| OES |
Orbiter Emergency Site |
| OES |
Outstanding Engineering Alumnus |
| OESS |
Orbiter ET Separation Subsystem |
| OEX |
Orbiter Experiments |
| OF |
Overflow Flag |
| OF |
Operational Instrumentation MDM-FWD |