| Ala al-Din Ali | |
|---|---|
| Sultan | |
 | |
| Sultan of the Eretnids | |
| Reign | 1366–1380 |
| Predecessor | Ghiyath al-Din Muhammad I |
| Successor | Muhammad II Chelebi |
| Born | January 1353 |
| Died | (aged 27) Kazova |
| Burial | Köşkmedrese, Kayseri |
| Issue | Muhammad II Chelebi |
| House | Eretnids |
| Father | Ghiyath al-Din Muhammad I |
| Religion | Islam |
Ala al-Din Ali (January 1353 – August 1380) was the third Sultan of the Eretnids ruling from 1366 until his death. He inherited the throne at a very early age and was removed from administrative matters. He was characterized as particularly keen on personal pleasures, which later discredited his authority. During his rule, emirs under the Eretnids enjoyed considerable autonomy, and the state continued to shrink as neighboring powers captured several towns. The capital, Kayseri, temporarily came under Karamanid control. Kadi Burhan al-Din rose to power as the new vizier and dispatched Ali to lead several campaigns, most of which were unsuccessful. Ali died of the plague in Kazova in an expedition to subdue Shadgeldi, the emir of Amasya.