| Abbreviation | Definition |
|---|---|
| LPV | Localizer Performance with Vertical Guidance |
| LR | Load Range |
| LR | Lost Road |
| LR | Low Rider |
| LRC | Long Range Cruiser |
| LRFD | Load and Resistance Factor Design |
| LRG | Liquefied Refinery Gases |
| LRN | Location Routing Number |
| LRN | Long Range Navigation |
| LRNAV | Long Range Navigation |
| LRNS | Long Range Navigation Systems |
| LRO | Land Rover Owner |
| LRPV | Long Range Patrol Vehicle |
| LRR | Long-Range Radar |
| LRRT | Light Rail Rapid Transit |
| LRS | Linear Referencing System |
| LRT | Light Rail Transit |
| LRT | light rail transportation |
| LRT | Light Rapid Transit |
| LRV | Light Rail Vehicle |