Mu'iz-ud-din Umar Shaikh Mirza (1356 – February 1394) (Persian: عمر شیخ میرزا) was a member of the Timurid dynasty and a son of its founder, the Central Asian conqueror Timur. Known for being a skilled soldier, Umar Shaikh was one of Timur's military commanders and also served as a regional governor. He died in 1394, predeceasing his father by over a decade.