| Type: | monarch |
| بدرالدین | |
| Badr al-Dīn Maḥmūd | |
| Succession: | 5th Beg of Ḳaraman |
| Reign: | 1300-131 |
| Predecessor: | Güneri |
| Successor: | Musa Bey |
| House: | Ḳarāmān |
| Father: | Karim al-Dīn Ḳarāmān |
| Birth Date: | 1259 |
| Death Date: | 1311 (aged 52) |
| Religion: | Islam |
Badr al-Din Mahmud (1259-1308) was a bey of Karaman Beylik, a Turkoman principality in Anatolia, 14th century. His father was Karaman Bey, who succeeded his elder brother Güneri in 1300.[1] Although he is known to have participated in the campaign to Alaiye during Güneri's reign, the details of his exact reign are unknown. After the death of Hethum II in 1307, he took advantage of the weakened Armenian Kingdom of Cilicia and captured some of their territories. But when Seljuk sultan Mesud II died in 1308, he turned back and saw his chance to capture Konya, the Seljuk capital.[2]
He died in 1312. His tomb is in Balkusan village at Ermenek district of Karaman Province. He was succeeded by his son Musa.