Dermetinan Castle is one of the military monuments in Turkey. It is located in Mardin province of Turkey.

There is a few info on the castle. As it is known as a Byzantine castle, we can come across a powerful defensive components. It is so powerful that it could handle siege of Timur. We can see tombs of Byzantines here.

It provides valuable information on the historical background of the region. It is realized that it had an important role on military history of the region.