SQ

Sq or SQ may stand for:

*Albanian language (ISO 639 alpha-2)
*Squadron
*Square (algebra), especially measures of area, such as square foot (sq ft)
*Singapore Airlines: IATA airline designator
*Sentience Quotient a term to measure the total processing capacity of a brain
*Sound Quality the characteristics of the output of a preamp, amp or sound system.
*Space Quest, a series of adventure games by Sierra Entertainment.
*Spiritual Quotient, a term in popular psychology
*United States Academic Decathlon has an event called Super Quiz
*Subcutaneous tissue injection abbreviation
*Sûreté du Québec, the Quebec police force
*Quadraphonic matrix system from Columbia Records', used in the 1970s
*SQ (program), a program for compressing files on MS-DOS and CP/M.