âÂÂAlÃÂâ al-Dën Abu al-Ḥasan âÂÂAlë ibn âÂÂAjlÃÂn ibn Rumaythah ibn Abë Numayy al-Ḥasanë () was an Emir of Mecca.
He was killed on Wednesday, 7 Shawwal 797 AH (28 July 1395).
He is possibly the same person as Sharif Ali of Brunei.