| Abbreviation | Definition |
|---|---|
| SPP | Serial Port Profile |
| SPP | Software Programmers Manual |
| SPP | Space Switch Module |
| SPP | Solar Physics Payload |
| SPP | Simulation Planning Panel |
| SPP | Science Power Platform |
| SPPIL | Subsystem Project Manager |
| SPPIL | Shuttle Preferred Pyrotechnic Items List |
| SPPL | Software Program Managers Network |
| SPPL | Spare Parts Provisioning List |
| SPPP | Special Purpose Manipulator System |
| SPPP | Spacelab Payloads Processing Project |
| SPQEM | Scheme for Providing Quality Education in Madarasas |
| SPR | Spare Part Number |
| SPR | Software Project Notebook |
| SPR | Subcontractor Performance Review |
| SPR | Software Problem Report |
| SPRAG | Standard Precision Navigator |
| SPRAG | STS Payloads Requirements and Analysis Group |
| SPREP | South Pacific Regional Environment Programme |
| SPRT | Shuttle Project Notice |
| SPRT | Sequential Probability Ratio Test |
| SPS | Special Processes and Sequencing |
| SPS | Solar Power Satellites |
| SPS | Statement of Prior Submission |
| SPS | Solar Power Satellite |
| SPS | Shuttle Procedures Simulator |
| SPS | Service Propulsion Subsystem |
| SPS | Secondary Propulsion System |
| SPS | Samples per Second |
| SPT | Set Process Title |
| SPT | Shadow Page Table |
| SPT | Steering Position Transducer |
| SPTD | Supplemental Provisioning Technical Documentation |
| SPU | Sheep Production Unit |
| SPUR | Single Precision Unpacked Rounded |
| SQA | Software Quality Analyst |
| SQA | Solution Quenched and Annealed |
| SQA | Subcontractor Quality Assurance |
| SQE | Supplier Quality Engineer |
| SQH | Scottish Qualification for Headship |
| SQL | Structured Query Language |
| SQL | Sound Quality Loud |
| SQL | Strong Question Language |
| SQL | Structured Question Line |
| SQL | Sequenced Query Language |
| SQP | Software Quality Professional |
| SQR | Square Root |
| SR | Southern Railway |
| SR | Source Register |