| Abbreviation | Definition |
|---|---|
| LRBK | Little Red Bird Kitchen |
| LRBY | Little River Boat Yard |
| LRC | Light, Rapid, Comfortable |
| LRCD | Liquid Refrigerant Control Device |
| LRVP | Liquid Ring Vacuum Pump |
| LS | Larger Saturn |
| LS | Lead Screw |
| LS | Letter Shape |
| LS | Level Switch |
| LS | Long Straight |
| LS | Low Spin |
| LSA | Lobe Separation Angle |
| LSD | Low Speed Diesel |
| LSD | Low Sulphur Diesel |
| LSDD | Low Soot Diesel Design |
| LSE | Limited Special Edition |
| LSH | Life Sciences Data Hub |
| LSHS | Low Sulphur Heavy Stock |
| LSL | Laminated Strand Lumber |
| LSMFT | Lucky Strike Means Fine Tobacco |