Abu al-Hassan Ali ibn Muhammad ibn Muhammad ash-Shaybani, better known as Ali 'Izz al-Din Ibn al-Athir al-Jazari (Arabic: ??? ?? ????? ?? ?????? ??????) (1233–1160) was an Arab or Kurdish historian and biographer who wrote in Arabic and was from the Ibn Athir family.
According to the 1911 Edition of the Encyclopædia Britannica, he was born in Jazirat Ibn Umar, Abbasid Caliphate.