Sagdiyev (Kazakh: Сағдиев, Tajik: Саъдиев, Uzbek: Sa`diev, Russian: Сагдиев, German: Sadijew, Estonian: Sa’dijev) is a surname of Turkic origin. Its feminine form is Sagdiyeva. It is a slavicised version of Sagdi, Sagdat or Sagdatdin by introduction of the suffix -yev.