Hafsa (Hâfize) Khātun[1] (fully Devletlu İsmetlu Hafsa (Hâfize) Hatun Hazretleri, Ottoman Turkish: حفصہ خاتون‎, born before 1380 – died after 1403[2]) (Hafsa, Hâfize meaning "one who has memorized the Qur'an") was the wife of Ottoman Sultan Bayezid I of the Ottoman Empire.[3]