Ken Ōka (born April 8, 1977; commonly transliterated as Ken Ohka) is a Japanese professional wrestler currently working for the Japanese promotion Ganbare☆Pro-Wrestling (GanPro). He is perhaps best known for his time with DDT Pro-Wrestling, where he became a one-time KO-D Openweight Champion, one-time KO-D Tag Team Champion, and nine-time Ironman Heavymetalweight Champion.