| Abbreviation | Definition |
|---|---|
| LRO | Leeward Radiation Oncology |
| LRP | Lang, Richert, & Patch |
| LRP | Living Room Productions |
| LRS | Levi, Ray & Shoup, Inc. |
| LRS | Levi, Ray, & Shoup, Incorporated |
| LRS | Linsalata Realty Services |
| LRT | Loan Recovery Target |
| LRTI | Little Rock Tools Inc |
| LRW | Lieberman Research Worldwide |
| LS | Lingfords Specials |
| LS | Lone Star |
| LSAC | Latino Scholastic Achievement Corporation |
| LSC | Lafayette School Corporation |
| LSC | Language Service Company |
| LSC | League Service Corp |
| LSC | Legal Services Corporation |
| LSC | Leo Schachter Company |
| LSC | Lincoln Sport Coupe |
| LSC | Loral Systems Company |
| LSC | Lorenzo Shipping Corp |