CJS

CJS may refer to:
 * Certified Journeyman Safecracker, an American trade qualification awarded to members of the National Safeman's Organization
 * Corpus Juris Secundum, an encyclopedia of U.S. law
 * Collège Jeanne-Sauvé, a high school in Winnipeg, Manitoba, Canada
 * Ciudad Juárez International Airport, IATA airport code: CJS
 * Callejeros, Argentine rock band
 * Cairo Japanese School
 * Casi Justicia Social, Argentine Rock band
 * Criminal justice system
 * Captain Jack Sparrow, the protagonist of the Pirates of the Caribbean film franchise
 * CommonJS, a standardization project for JavaScript module ecosystem outside web browsers