Zephyrium or Zephyrion () was a town of ancient Pontus in the territory of the Mosynoeci, located on a promontory of the same name, 90 stadia to the west of Tripolis, mentioned by several ancient authors.Arrian, Periplus of the Euxine Sea p. 17; Periplus of Pseudo-Scylax; Anon. Peripl. P. E. p. 13; Tabula Peutingeriana;
The promontory is identified as Çam Burnu (formerly Zefre Burnu) in Asiatic Turkey, but the town is unlocated.
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