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| Ghiyath al-Din Muhammad I | |
|---|---|
| Sultan | |
 Silver coin dated back to Ghiyath al-Din Muhammad's rule, minted in Erzurum. | |
| Sultan of the Eretnids | |
| First reign | 1352–1354 |
| Predecessor | Eretna |
| Successor | Izz al-Din Jafar |
| Regent | Khoja Ali Shah |
| Second reign | 1355–1365 |
| Predecessor | Izz al-Din Jafar |
| Successor | Ala al-Din Ali |
| Died | October 1365 Kayseri, Eretnids |
| Burial | Köşkmedrese, Kayseri |
| Issue |
|
| House | Eretnids |
| Father | Eretna |
| Mother | Isfahan Shah Khatun |
| Religion | Islam |
Ghiyath al-Din Muhammad I (died October 1365) was the second Sultan of the Eretnids in central and eastern Anatolia, ruling from 1352 until his death. He was enthroned at a young age and struggled to maintain his authority over the state his father, Eretna, had founded. Although he was initially preferred over his older brother Jafar, Muhammad was deposed by his emirs early into his reign and was replaced by Jafar. After some time in exile, he returned, restored his throne, and killed his brother. Though, throughout his reign, he dealt with rebellions and lost land to local Turkoman lords, the Dulkadirids, and the Ottomans. After putting an end to his former vizier Khoja Ali Shah's revolt and returning to the capital, Kayseri, Muhammad was murdered by his emirs, who crowned his son Ali as the new sultan.