| Acronym | Definition |
|---|
| LSW | London South Western (railway; UK) |
| LSW | Land and Sea Warfare (US DoD) |
| LSW | Licensed Social Worker |
| LSW | Lego Star Wars (Lego Group and Lucasfilm Ltd.) |
| LSW | Library Society of the World |
| LSW | List Window |
| LSW | Library System Workstation |
| LSW | Light Support Weapon |
| LSW | Liberty Seguros-Wurth (Spanish cycling team) |
| LSW | Lincoln Southwest (Nebraska high school) |
| LSW | Legendary Super Warriors (gaming) |
| LSW | Lesser Software (Germany) |
| LSW | Least Significant Word |
| LSW | Legal Support World (est. 2008) |
| LSW | Language School Worldwide (various locations) |
| LSW | Last Seen Wearing |
| LSW | Lamberg Sleep Well (oral appliance) |
| LSW | Long Suffering Wife |
| LSW | Laboratory Safety Workshop |
| LSW | Light Ship Weight (naval engineering) |
| LSW | Lasik Surgery Watch (est. 2008) |
| LSW | Lucas-Sargent-Wallace proposition |
| LSW | London Standard Wording (insurance) |
| LSW | Loudoun Symphonic Winds (Leesburg, VA) |
| LSW | Leeds Sculpture Workshop |
| LSW | Left-Sided Weakness (neurology) |