Al-Qāsim ibn Hārūn ar-Rāshīd ibn Muḥammad al-Mahdī was an Abbasid prince, the third son of the Abbasid caliph Harun al-Rashid, and for a time third-in-line to the Abbasid throne.
- Occupation
- military leader
- Citizenship
- Abbasid Caliphate
- Born
- 701
- Died
- 801
