Zephyrium or Zephyrion was an ancient name of Mersin, a city in Turkey and a titular see of the Roman Catholic Church.
Zephyrium or Zephyrion () may also refer to: Zephyrium (Crimea), an ancient town located in Crimea Zephyrium (Paphlagonia), a town of ancient Paphlagonia, now in Turkey Zephyrium (Pontus), a town of ancient Pontus, now in Turkey Zephyrium on the Calycadnus, a town of ancient Cilicia, now in Turkey