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.