| Acronym | Definition |
|---|
| LLS➣Logements Locatifs Sociaux (French: Social Rented Housing) |
| LLS➣Leukemia & Lymphoma Society |
| LLS➣Loyola Law School (Los Angeles, CA) |
| LLS➣Late Late Show (TV) |
| LLS➣Locke Liddell & Sapp (law firm) |
| LLS➣Linear-Least Squares |
| LLS➣Liquid Line Solenoid (valve) |
| LLS➣Link Local Signaling |
| LLS➣Link List Section |
| LLS➣Low Level Control System |
| LLS➣Launch and Landing Site (US NASA) |
| LLS➣Linen & Laundry Services (cleaning) |
| LLS➣Lyman Limit System |
| LLS➣Language Line Services (translation company) |
| LLS➣Language Learning Strategies |
| LLS➣Light Louisiana Sweet (crude oil grade) |
| LLS➣Leigh-Like Syndrome |
| LLS➣Licensed Land Surveyor |
| LLS➣Liquid Level Sensor |
| LLS➣Lender Lead Solutions (mortgages) |
| LLS➣Language Learning Solutions |
| LLS➣LED (Light Emitting Diode) Lighting Solutions (various locations) |
| LLS➣Logistics Labour Survey (Netherlands) |
| LLS➣Least Loaded Server |
| LLS➣Laser Line Scanner |
| LLS➣Thermo Electron Life and Laboratory Sciences (India) |
| LLS➣Local Line Switch |
| LLS➣Low-Level Solid |
| LLS➣Localized Light Scattering |
| LLS➣Lower Level Switch |
| LLS➣Lunar Logistic System |
| LLS➣Laser Light Source |
| LLS➣Learning and Life Skills (education) |
| LLS➣Land Leveling System |
| LLS➣Logical-Level Sharing |
| LLS➣Lunar Landing Simulator |
| LLS➣Laboratori de Llum de Sincrotró (Synchrotron Light Laboratory; Barcelona, Spain) |
| LLS➣Lateral Line System (sensory organ in fish) |
| LLS➣Low Level Support |
| LLS➣Lower Limit Switch |
| LLS➣Location Look-Up Support |
| LLS➣Libertarian Leadership School (Libertarian National Committee) |
| LLS➣Laser Leveling System |
| LLS➣Large Laboratory System (LabCorp) |