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 (Langue des signes québécoise), 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