| Hajji | |||||
|---|---|---|---|---|---|
| Al-Malik al-Muzaffar | |||||
 Copper fals of Muzaffar Hajji | |||||
| Sultan of Egypt | |||||
| Reign | September 1346 – December 1347 | ||||
| Predecessor | Al-Kamil Sha'ban | ||||
| Successor | An-Nasir Hasan | ||||
| Born | 1331 Cairo, Mamluk Sultanate | ||||
| Died | December 1347 (age 16) Outskirts of Cairo, Mamluk Sultanate | ||||
| Issue | Muhammad Ahmad | ||||
| |||||
| House | Qalawuni | ||||
| Dynasty | Bahri | ||||
| Father | An-Nasir Muhammad | ||||
| Religion | Islam | ||||
Al-Muzaffar Sayf ad-Din Hajji ibn Muhammad ibn Qalawun, better known as al-Muzaffar Hajji, (1331–December 1347) was the Bahri Mamluk sultan of Egypt. He was also the sixth son of an-Nasir Muhammad (d. 1341) to hold office, ruling from September 1346 and December 1347. He was known for his love of sports and pigeon racing, acts which led to frustration among the senior Mamluk emirs who believed he neglected the duties of office and spent extravagant sums on gambling. His reign ended when he was killed in a confrontation with Mamluk conspirators outside of Cairo.