| Abbreviation | Definition |
|---|---|
| LSCX | D-H Investors (Relam Auditing Services) |
| LSEU | One Way Lease |
| LSFZ | BNSF Railway |
| LSFZ | Burlington Northern and Santa Fe Railway Company |
| LSI | Lake Superior and Ishpeming Railroad |
| LSI | Lake Superior and Ishpeming Railroad Company |
| LSIU | L.S. Intertank |
| LSIX | Liquid Sugars (ADM Transportation) |
| LSIX | Liquid Sugars Incorporated |
| LSMX | Progress Rail Services Corporation |
| LSO | Louisiana Southern Railway |
| LSRC | Lake State Railway |
| LSRC | Lake State Railway Company |
| LSRD | Lone Star Rail District |
| LSRR | Lone Star Railroad |
| LSRR | Lone Star Railroad Incorporated |
| LSRX | Lake Superior Railroad Museum |
| LSTT | Lake Superior Terminal and Transfer Railway |
| LSV | Las Vegas Amtrak Station |
| LT | Lake Terminal Railroad |