Andronikos Doukas or Doux (Greek: Ἀνδρόνικος Δούκας/Δούξ, died circa 910) was a Byzantine general and rebel in the reign of Emperor Leo VI the Wise (r. 886–912). The first member of the illustrious Doukas line to achieve prominence as a successful general, his rivalry with the powerful eunuch Samonas led to his revolt and eventual defection to the Arabs in 906–907. He died in exile in Baghdad.