| Abbreviation | Definition |
|---|---|
| LA | Launch Azimuth |
| LA | Lightning Arrester |
| LA | Low Attitude |
| LAAD | Los Angeles Aircraft Division |
| LACB | Landing Aids Control Building |
| LACE | Low Altitude Compensation Experiment |
| LACIE | Large Area Crop Inventory Experiment |
| LACIP | Large Area Crop Inventory Program |
| LADEE | Lunar Atmosphere Dust Environment Explorer |
| LADEE | Lunar Atmosphere & Dust Environment Explorer |
| LAGEOS | LAser GEOdynamic Satellite |
| LAGS | Launch Abort Guide Simulation |
| LAIR | Liquid Air |
| LAIU | Launch Abort Interface Unit |
| LAP | Language Assistance Plan |
| LAPS | Left Aft Propulsion System |
| LAPS | Left Aft Propulsion System (Subsystem) |
| LAPS | Logistics Analysis and Provisioning System |
| LAR | Logistics Assessment Review |
| LaRC | Langley Research Center |