| Abbreviation | Definition |
|---|---|
| LS | Left Side |
| LS | Life Science |
| LS | Limit Switch |
| LS/ST | Light Shield/Star Tracker |
| LSA | Launch Services Agreement |
| LSAH | Launch Site Accommodations Handbook |
| LSAP | Launch Sequence Applications Program |
| LSAPT | Lunar Sample Analysis and Planning Team |
| LSAR | Logistics Support Analysis Record |
| LSB | Least Significant Bit |
| LSC | Linear Shaped Charge |
| LSCA | Logistics Support Cost Analysis |
| LSD | Landing Ship Dock |
| LSD | Low Speed Data |
| LSD | Low-density Supersonic Decelerator |
| LSE | Launch Support Equipment |
| LSE | Life Support Equipment |
| LSF | Laboratory Simulation Facility |
| LSFE | Life Sciences Flight Experiment |
| LSG | Light To Solar Gain |