Hafsa (Hâfize) Khātun (fully Devletlu İsmetlu Hafsa (Hâfize) Hatun Hazretleri, Ottoman Turkish: حفصہ خاتون, born before 1380 - died after 1403) (Hafsa, Hâfize meaning "one who has memorized the Qur'an") was the wife of Ottoman Sultan Bayezid I of the Ottoman Empire.