Sayf al-Dawla Khalaf ibn Mulāʿib al-Ashhabī al-Kilābī (Arabic: سيف الدولة خلف بن ملاعب الأشهبي الكلابي; died 3 February 1106) was the emir of Homs and Apamea between 1082 and 1090. He later seized Apamea again in 490 A.H./1096 from Ridwan and held the city, under the suzerainty of the Fatimid Caliphate, until his assassination by the Assassins.