Abu al-Fath Ismail bin Nur al-Din Mahmud bin Imad al-Din bin Aq Sunqur al-Zangi (Arabic: أبو الفتوح إسماعيل بن نور الدين محمود بن عماد الدين بن آق سنقر الزنكي) commonly known as As-Salih Ismaʿil al-Malik (Arabic: الصالح إسماعيل) (Full name: (1163–1181) was the Zengid emir of Damascus and emir of Aleppo in 1174, the son of Nur ad-Din.

As-Salih came under the protection of the eunuch Gümüshtekin and was taken to Aleppo, while Nur ad-Din's officers competed for supremacy.

[citation needed] In 1174, Saladin took Baalbek after a four-month siege[1] and then entered Damascus, proclaiming himself to be Ismail's true regent.

In 1176, Saladin defeated the Zengids outside the city, married Ismat ad-Din Khatun, and was recognized as ruler of Syria.

Following his death, Saladin took control of Aleppo and added it to his rule under the expanding Ayyubid Sultanate.