LCLS may refer to:
Library systems
edit- Lake County Library System, in Lake County, Florida, US
- Luzerne County Library System, in Luzerne County, Pennsylvania, US
Other uses
edit- Linac Coherent Light Source, at the SLAC National Accelerator Laboratory in Menlo Park, California, US
See also
edit- Library System of Lancaster County (LSLC), in Lancaster, Pennsylvania, US