John Komnenos Vatatzes, or simply John Komnenos or John Vatatzes (the transliteration 'Batatzes' is also employed) in the sources, is a major military and political figure in the Byzantine (Eastern Roman) Empire during the reigns of Manuel I Komnenos and Alexios II Komnenos.

He was born c.1132, and diesof natural causes during a rebellion he raises against Andronikos I Komnenos in 1182.