| Type: | monarch |
| Emir | |
| Succession: | Emir of Amasya |
| Reign: | August–September 1359 – 1361 |
| Reign-Type: | First reign |
| Predecessor: | Shihab al-Din Ahmad Shah |
| Successor: | Ala al-Din Ali |
| Reign1: | 1361 – 1381 |
| Reign-Type1: | Second reign |
| Predecessor1: | Ala al-Din Ali |
| Successor1: | Fakhr al-Din Ahmad |
| Death Date: | 1381 |
| Issue: | Fakhr al-Din Ahmad |
| Father: | Hajji Kutlu Shah |
| Religion: | Islam |
Hajji Sayf al-Din Shadgeldi Padishah (Old Anatolian Turkish: Turkish: شاد كلدی; died 1381) was Emir of Amasya from 1359 until his death. He was the second oldest son of Hajji Kutlu Shah and became the emir of Amasya in August–September 1359. He received his education from Mawlana Fakhr al-Din Ilyas in Amasya and was a classmate of Aqsara'i. He was initially loyal to Eretna but exercised autonomy following his death.
Shadgeldi was the second eldest son of Hajji Kutlu Shah. He received his education from Mawlana Fakhr al-Din Ilyas in Amasya and was a classmate of Aqsara'i. Hajji Kutlu Shah appointed him as the emir of Amasya in August–September 1359 and sent his older brother and former Emir of Amasya, Shihab al-Din Ahmad Shah, to govern Sivas, departing to fight off the Karamanids. When Kutlu Shah died and most of the military was abroad with him, Shadgeldi was forced out of Amasya by Ala al-Din Ali Beg, who claimed rule in 1361.
Several months later, Shadgeldi reclaimed the rule. He appointed the emir of Niksar, Siraj al-Din Muhammad Beg as his vizier, the of Amasya, Nizam al-Din Mahmud as the kazasker, Aqsara'i as the kadi of Amasya, and Gumushluoghlu Hajji Sinan al-Din Yusuf as the defterdar.