Abu Muhammad al-Hasan ibn Abu'l-Hayja 'Abdallah ibn Hamdan Nasir al-Dawla al-Taghlibi (; died 968 or 969), more commonly known simply by his laqab (honorific epithet) of Nasir al-Dawla ("Defender of the [Abbasid] Dynasty"), was the second Hamdanid ruler of the Emirate of Mosul, encompassing most of the Jazira.