| Acronym | Definition |
|---|
| LSG | Linux Systems Group |
| LSG | Logistic(s) Support Group |
| LSG | Litigation Support Group (various locations) |
| LSG | Legal Solutions Group (New York, NY) |
| LSG | Local Self Governance (various organizations) |
| LSG | Light to Solar Gain |
| LSG | Louisiana Sea Grant |
| LSG | Lufthansa Service GMBH |
| LSG | Little School Girl |
| LSG | Large Scale Game |
| LSG | Lagos State Government |
| LSG | Lump Sum Grant |
| LSG | Life Sciences Glovebox |
| LSG | Lunar Surface Gravimeter |
| LSG | Low Sulfur Gasoline |
| LSG | Laboratorio de Soluciones Geneticas SC (Mexico) |
| LSG | Local Street Gazetteer |
| LSG | Logistics Solutions Group |
| LSG | Levert Sweat and Gill (band) |
| LSG | Linux Study Group (computing) |
| LSG | Lazy, Stupid, and Godless |
| LSG | Linear Sequence Generator |
| LSG | Lan Speed Games (website) |
| LSG | Lateral/Logistical Support Group |
| LSG | Longitudinal Study of Generations |
| LSG | Long Slow Goodbye |
| LSG | Local Surface Group (3D object recognition; computer science) |
| LSG | Low Speed Group |
| LSG | Lip Smacking Good |
| LSG | Loco Secretaris-Generaal (Dutch: vice general secretary) |
| LSG | low-idle speed governor |