Al-Mamun of Toledo
| Yahya ibn Ismail al-Mamun | |
|---|---|
Dinar of Al-Mamun | |
| Emir of Toledo Taifa | |
| Reign | 1043 – 1075 |
| Predecessor | Ismail al-Zahir |
| Successor | Yahya al-Qadir |
| Died | 1075 Cordoba |
| Dynasty | Dhulnunid |
| Religion | Islam |
Yahya ibn Ismail al-Mamun (Arabic: المأمون بن ذي النون) (died 1075) was the second ruler of the Berber Hawwara Dhulnunid dynasty who was king of the Taifa of Toledo between 1043 and 1075.