Shihab al-Din Abu al-Abbas Ahmad ibn Fadlallah al-Umari (Arabic: شهاب الدين أبو العبّاس أحمد بن فضل الله العمري, romanized: Shihāb al-Dīn Abū al-ʿAbbās Aḥmad ibn Faḍlallāh al-ʿUmarī), commonly known as Ibn Fadlallah al-Umari or al-Umari, (1300 – 1349) was an Arabhistorian, born in Damascus. His major works include at-Taʾrīf bi-al-muṣṭalaḥ ash-sharīf, on the subject of the Mamluk administration, and Masālik al-abṣār fī mamālik al-amṣār, an encyclopedic collection of related information. The latter was translated into French by Maurice Gaudefroy-Demombynes in 1927.
A student of Ibn Taymiyya, Ibn Fadlallah visited Cairo shortly after the MalianMansaKankan Musa I's pilgrimage to Mecca, and his writings are one of the primary sources for this legendary hajj. In particular, Ibn Fadlallah recorded that the Mansa dispensed so much gold that its value fell in Egypt for a decade afterward, a story that is often repeated in describing the wealth of the Mali Empire.