Andronikos I Komnenos (Greek: Ἀνδρόνικος Κομνηνός, romanized: Andrónikos Komnēnós; c. 1118/1120 – 12 September 1185), Latinized as Andronicus I Comnenus, was Byzantine emperor from 1183 to 1185. A nephew of John II Komnenos (r. 1118–1143), Andronikos rose to fame in the reign of his cousin Manuel I Komnenos (r. 1143–1180), during which his life was marked by political failures, adventures, scandalous romances, and rivalry with the emperor.