Abu Abdallah al-Husayn ibn Nasir al-Dawla was a Hamdanid prince, who along with his brother Ibrahim was the last Hamdanid ruler of Mosul in 989–990. After his defeat at the hand of the Marwanid Kurds and the takeover of Mosul by the Uqaylids, he entered the service of the Fatimid Caliphate.