Şemsettin of Karaman (died 1352) was a bey of the Karaman Beylik, a Turkish beylik in Anatolia in the 14th century. His father was İbrahim Bey. He succeeded his brother Ahmet Bey in 1350.[1] However, his reign was short, and it is believed he was poisoned by one of his brothers in 1352.
| Semsettin Beg | |
| بك | |
| Succession: | Beg of Karamanid |
| Reign: | 1350-1352 |
| Predecessor: | Musa Bey |
| Successor: | Ahmet Bey |
| Birth Date: | 1308 |
| Death Date: | 1352 (aged 46) |