| Abbreviation | Definition |
|---|---|
| LFOP | Landing and Ferry Operations Panel |
| LFRR | Low Frequency Radio Range |
| LG | Landing Gear |
| LG | Length |
| LG | Looking Good |
| LG | Lost Goldstar |
| LG | Low Gravity |
| LGA | linear gravity anomalies |
| LGA | Low Gain Antenna |
| LGIU | Laser Gyro Interface Unit |
| LGM | Little Green Men |
| LGP | Little Green People |
| LGRS | Lunar Gravity Ranging System |
| LH | Left Hand |
| LH2 | Liquid Hydrogen |
| LHA | Local Hour Angle |
| LHC | Left Hand Circular |
| LHCP | Left Hand Circular Polarization |
| LHe | Liquid Helium |
| LHP | Left Hand Panel |