Kadar Al-Sayf (unknown – 1191) was a member of the Levantine Brotherhood of Assassins during the 12th century, the younger brother of Malik Al-Sayf, and the uncle of Malik's son Tazim Al-Sayf. While not ranked highly above a novice of the Order, he was among the Assassins sent to recover the Templar treasure in 1191 at Solomon's Temple. Unfortunately, due to a conflict that arose there, Kadar lost his life.