Muhammad ibn Hamed Isfahani (1125 – 20 June 1201) (Persian: محمد ابن حامد اصفهانی), more popularly known as Imad ad-din al-Isfahani (Persian: عماد الدین اصفهانی) (Arabic: عماد الدين الأصفهاني), was a historian, scholar, and rhetorician of Persian origin. He left a valuable anthology of Arabic poetry to accompany his many historical works and worked as a man of letters during the Zengid and Ayyubid period.