Bahā' ad-Dīn Yusuf ibn Rafi ibn Shaddād (; the honorific title "Bahā' al-Dīn" means "splendour of the faith") (7 March 1145 – 8 November 1234) was a 12th-century Muslim jurist and scholar, a Kurdish historian of great note, notable for writing a biography of Saladin whom he knew well.