| Abbreviation | Definition |
|---|---|
| LTM | Lead Time Matrix |
| LTRS | Langley Technical Reports Server |
| LTVS | Lunar Transport Vehicle System |
| LUB | Lubricate |
| LUS | Liquid Upper Stage |
| LUT | Launcher-Umbilical Tower |
| LV | Landing Vehicle |
| LV | Latching Valve |
| LV | Launch Vehicle |
| LV | Launch Version |
| LV | Lift Vector |
| LV | Limit Value |
| LV | Load Vertical |
| LV | Loading Valve |
| LV | Low Voltage |
| LVDC | Launch Vehicle Digital Computer |
| LVDT | Linear Variable Differential Transformer |
| LVDT | Linear Voltage Differential Transformer |
| LVL | Level |
| LVLH | Local Vertical/Local Horizontal |