Ahmad Musa was a painter of the 14th century in Ilkhanid Iran. He is said to have invented naturalistic Persianate painting, at the time the last Mongol Ilkhanid ruler, Abu Sa'id (r. 1317–35) was ruling. He may still have been active under the Jalayirid Sultanate of Shaykh Uways Jalayir, ca. 1370–74.