Muhammad ibn Hamid (Persian: محمد ابن حامد, romanized: Muḥammad ibn Ḥāmid; 1125 – 20 June 1201), commonly known as Imad al-Din al-Isfahani (Persian: عماد الدین اصفهانی), was a historian, scholar, and rhetorician.

Muhammad was born in Isfahan, to a Persian family,[1] in the year 1125, and studied at the Nizamiyya school in Baghdad.

After the death of Nur ad-Din in 1174, Imad al-Din was removed from all his bureaucratic duties, and was banished from the palace.

As chancellor he did not have to perform the everyday duties of the chancery scribes, and he had a lot of leisure time in Egypt.

He wrote the Kitab al-Barq al-Shami, which is largely lost, save for its third and fifth volumes, but was abridged by al-Bundari and used heavily by the Muslim historians Ibn al-Athir and Abu Shama in their own chronicles.