Al-Mansur Ali (Arabic: المنصور على ) (epithet: Al-Malik Al-Manṣūr Nūr ad-dīn ʾAlī ibn Aybak (Arabic: الملك المنصور نور الدين على بن أيبك ) (b. c. 1244, Cairo) was the second of the Mamluk Sultans of Egypt in the Turkic, or Bahri, line. Some historians, however, consider Shajar al-Durr as the first of the Mamluk Sultans; thus, to them Al-Mansur Ali was the third Mamluk Sultan and not the second.