QC

QC may refer to:

Places

 * Quebec, a Canadian province
 * Quebec City, its capital
 * Quezon City, Philippines
 * The Quad Cities, an American metropolitan area along the Mississippi River
 * QualiEd College, a Hong Kong high school

Arts and entertainment

 * Quake Champions, a 2017 FPS video game
 * Quality Control Music, an American record label (launched 2013)
 * Questionable Content, a webcomic by Jeph Jacques (launched 2003)

Computing

 * QuakeC, a scripting language in the computer game Quake by ID Software
 * Quantum computing, a type of computation
 * Quantum cryptography, a variety of cryptography employing quantum mechanics or quantum computers
 * Quartz Composer, a node-based visual programming language
 * Quick Charge, a technology for managing power delivered over USB

Other uses in science and technology

 * Quantum chemistry
 * ATCvet code QC, a class of veterinary medicines
 * Quantum cascade, a technique used in a quantum cascade laser

Other uses

 * Quality control, in business
 * Quebec Central Railway, Canada (1869–2006)
 * Queen's Counsel, a type of lawyer in Commonwealth countries
 * QuietComfort, a Bose headphones brand
 * Quota Count system, an aircraft noise limit