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