KCJ

KCJ may refer to:
 * Kenya Ceramic Jiko, a type of stove
 * Kids Code Jeunesse, a Canadian non-profit organization
 * Knight Commander of the Order of Saint Joachim
 * Kobiana language (ISO code 'kcj')
 * PT KAI Commuter Jabodetabek, now Kai Commuter
 * Kerala Congress (Joseph), a former political party in India lead by P. J. Joseph, split from Kerala Congress and later merged into it