Kaiba (カイバ) is a Japanese science fiction anime television series produced by Madhouse. The series is created, written, and directed by Masaaki Yuasa, it was broadcast for 12 episodes on WOWOW from April to July 2008. In North America, the series is licensed by Discotek Media. The story revolves around an enigmatic character named Warp, and takes place in a strange world mixed with a universe where changing bodies and trafficking memories are possible.

In 2008, Kaiba won the Excellence Award at the 12th Japan Media Arts Festival.