| Abbreviation | Definition |
|---|---|
| LHS | Luxury High Sedan |
| LI | Liner In |
| LIAT | Leeward Island Airline Transportation |
| LIAT | Leeward Islands Air Transport |
| LID | Location IDentifier |
| LIDAR | Light Detection and Ranging |
| LIE | Long Island Expressway |
| LIFE | Logistics Innovation For Efficiency |
| LIFO | Liner In Free Out |
| LIH | Lihue Airport |
| LIM | Linear Induction Motor |
| LINCS | Leased Interfacility Nas Communications System |
| LIOR | Long Island Off Road |
| LIP | Limited Implementation Program |
| LIRL | Low Intensity Runway Edge Lights |
| LIRR | Long Island Rail Road |
| LIRS | Low Impact Resistant Supports |
| LIT | Adams Field |
| LIV | Limitless Interface Vehicle |
| LJ | Light Jet |