Deris (Ancient Greek: Δέρις or Δερίς) was an ancient Greek[1] city located in ancient Thrace, located in the region of the Thracian Chersonesus. It is cited in the Periplus of Pseudo-Scylax, which mentions that it was an Emporium and was located between the river Melas, which flows into the Gulf of Melas, and Cardia.[2] It has been suggested that it would be the same as a city called Deiraeus or Deiraios (Δειραῖος), cited by Stephanus of Byzantium and appearing in an inscription according to which it belonged to the Delian League.[1][3]
Its site is tentatively located near Kocaçesme, Turkey.[4][5]