Saif ad-Dīn Qalawun aṣ-Ṣāliḥī (also Qalāʾūn or Kalavun) (epithet: al-Malik al-Manṣūr Saif ad-Dīn Qalāʾūn al-Alfi as-Ṣālihī an-Najmī al-ʿAlāʾī (Arabic: الملك المنصور سيف الدين قلاوون الألفى الصالحى النجمى العلاءى) (c. 1222 – November 10, 1290) was the seventh Mamluk sultan of Egypt. He was in the Baḥrī line and ruled Egypt from 1279 to 1290.