Abu Muhammad `Abdallah al-Adil (Arabic: عبد الله ‘Abd Allāh) was selected as caliph of Morocco following the 1223 strangulation of the previous Almohad caliph, Abdul-Wahid I. Abdallah's vizier was Abu Zayd Abi Muhammad bin Abi Hafs, who had previously served his uncle, Muhammad an-Nasir, and his cousin, Yusuf II, as governor of Ifriqiya.
During Abdallah's reign, there were two pretenders to the Moroccan throne: his brother Abu al-Ila Idris al-Mamun, supported by Ferdinand III of Castile, and another brother, Yahya al-Mu`tasim, supported by the sheikhs of Marrakesh.
In 1227, Abdallah was drowned in a palace bathtub and was succeeded by his son Yahya.
| Preceded by Abdul-Wahid I |
Almohad dynasty 1224–1227 |
Succeeded by Yahya |