| Abbreviation | Definition |
|---|---|
| PDR | Process Description Report |
| PDR | Processed Data Recorder |
| PDR | Processed Data Ring |
| PDR | Program Design Review |
| PDR | Program Director's Review |
| PDRD | Procurement Data Requirements Document |
| PDRL | Procurement Data Requirements List |
| PDRM | Payload Deployment and Retrieval Mechanism |
| PDRSS | Payload Development and Retrieval System Simulator |
| PDRSTA | Payload Deployment and Retrieval System Test Article |
| PDS | Package Data System |
| PDS | Partitioned Data Set |
| PDS | Planetary Data System |
| PDS | Power Distribution System |
| PDS | Power Distribution System (Subsystem) |
| PDS | Problem Data System |
| PDSS | Payload Data System Services |
| PDSS | Payload Data System Services System |
| PDU | Payload Data Unit |
| PDU | Performance Diagnostic Unit |