Abu Musa Muhammad ibn Harun al-Rashid (Arabic: ??? ???? ???? ?? ????? ???????, romanized: Abu Musa Mu?ammad ibn Harun al-Rashid; April 787 – 24/25 September 813), better known by his regnal name of al-Amin (Arabic: ???????, romanized: al-Amin), was the sixth Abbasid Caliph.
He succeeded his father, Harun al-Rashid, in 809 and ruled until he was deposed and killed in 813, during the civil war with his half-brother, al-Ma'mun.