QSC

QSC may refer to:

Corporations

 * QSC AG, a German telecommunications and DSL provider
 * QSC Audio Products aka Q-SYS, a global audio, video, and control platform manufacturer based in California
 * Queens Surface Corporation, a former bus company in New York City

Colleges

 * Queen's School of Computing, a department of Queen's University in Kingston, Ontario, Canada
 * Quirino State College, former name of Quirino State University in Quirino, Philippines

Other uses

 * QSC, the IATA airport code for São Carlos Airport in Brazil
 * QSC, a radiotelegraphic Q code meaning "are you a cargo vessel" when posed as a question
 * qSc, a portion of the equation defining the pitching moment coefficient of an airfoil
 * Quebec Superior Court, the trial-level superior court of the province of Quebec, Canada
 * Queens Sports Club, a stadium in Bulawayo, Zimbabwe
 * QSC&V (Quality, Service, Cleanliness & Value), a quality benchmark used by McDonald's Corporation
 * QSC supercomputer (2004–2007), a supercomputer at Los Alamos National Laboratory which replaced Blue Mountain (supercomputer)