LSQ
LSQ may refer to:
- Les Stewart Quartet, a predecessor of the band The Quarrymen
- Load-Store Queue, a structure used by some computer CPUs' memory disambiguation mechanisms
- Agua Santa Airport (IATA airport code: LSQ), Los Ángeles, Chile
- Quebec Sign Language (Script error: No such module "Lang".), a sign language used in Canada
- Lone Scout Quill, a grade of scouting of the Lone Scouts of America
- Least squares, a technique of equation fitting