Turahan Bey or Turakhan Beg (died in 1456) is a prominent Ottoman military commander and Ottoman governor of Thessaly from 1423 until his death in 1456.

He participates in many Ottoman campaigns of the second quarter of the 15th century, fighting against the Byzantines as well as against the Crusade of Varna.

His repeated raids into the Morea transform the local despotate into an Ottoman dependency and open the way for its conquest, and his administration of Thessaly, where he settles new peoples, founds the town of Tyrnavos and revitalizes the economy, lays the groundwork for Ottoman rule in the area for centuries to come.