Badr al-Din Lu'lu' () (died 1259) (the name Lu'Lu' means 'The Pearl', indicative of his servile origins) was successor to the Zengid emirs of Mosul, where he governed in variety of capacities from 1234 to 1259 following the death of Nasir ad-Din Mahmud. He was the first mamluk to transcend servitude and become an emir in his own right, anticipating the rise of the Bahri Mamluks to the sultanate of Egypt by twenty years. He preserved control of al-Jazira through a series of tactical submissions to larger neighboring powers, at various times recognizing Ayyubid, Rûmi Seljuq, and Mongol overlords. His surrender to the Mongols spared Mosul the destruction experienced by other settlements in Mesopotamia.
