| Acronym | Definition |
|---|
| LIOS➣Leadership Institute of Seattle (Seattle, WA) |
| LIOS➣Linz Institute for Organic Solar Cells (Johannes Kepler University; Linz, Austria) |
| LIOS➣Linear Optical Sensors |
| LIOS➣Local Input/Output Subsystem/Subunit |
| LIOS➣Long Island Orchid Society (est. 1953; Long Island, NY) |
| LIOS➣Lawful Interception Operating System (Siemens IT Solutions) |