Al-Muhtadi
14th Abbasid Caliph (r. 869–870)
- Died
- 870
Abū Isḥāq Muḥammad ibn Hārūn ibn Muḥammad ibn Hārūn al-Muhtadī bi-ʾLlāh, better known by his regnal name al-Muhtadī bi-ʾLlāh, was the Caliph of the Abbasid Caliphate from July 869 to June 870, during the "Anarchy at Samarra".