The King of DDT Tournament (Japanese: KING OF DDTトーナメント, Hepburn: Kingu Obu DDT Tōnamento) is an annual single elimination professional wrestling tournament held in DDT Pro-Wrestling (DDT). After the first two editions in and , DDT produced four annual King of DDT events from 2006 to 2009 which featured no tournament. The tournament returned in as the KO-D Openweight Championship Contendership Tournament. In , the tournament reverted to its original name.