Cyptasia or Kyptasia (Greek, Ancient (to 1453);: Κυπτασία) was a town on the Black Sea coast of ancient Paphlagonia. The name appears as Cloptasa in the Tabula Peutingeriana was 7 Roman miles from Sinope on the road to Amisus.
It is located near Eren Boğazı in Asiatic Turkey.