The KO-D (King of DDT) Openweight Championship (Japanese: KO-D無差別級王座, Hepburn: KO-D Musabetsu-kyū Ōza) is a professional wrestling world openweight championship and the top singles accomplishment in the Japanese promotion CyberFight currently defended in the DDT Pro-Wrestling (DDT) brand division. It is one of CyberFight's top major world titles, alongside the GHC Heavyweight Championship in Pro Wrestling Noah. The title was established in 2000 and the inaugural champion was Masao Orihara. As of July 3, 2022, there have been a total of seventy-nine recognized reigns and three vacancies shared between thirty-six recognized champions and one interim champion.