Kō Nakajima (中嶋興, Nakajima Kō, born 1941 in Kumamoto) is a Tokyo-based Japanese video artist, photographer, and inventor. His photographs of conceptual artist Yutaka Matsuzawa are a key resource for understanding Matsuzawa’s practice. Video Earth, the collective Nakajima founded with his students at Tokyo College of Photography, is one of the earliest video collectives in Japan, roughly contemporaneous with Video Hiroba. Nakajima was also a prolific experimenter and inventor, working with Sony and JVC to create the Animaker and the Aniputer, respectively. Since the late 1960s he has participated in numerous international film and video festivals, and supported the work of younger generations of artists as a mentor.