Zone was an ancient Greek
polis on the
Aegean coast of Thrace, located in the neighborhood of the cities of Sale, Serreion, and Drys. It was a member of the
Delian league. Its location has been sought in various places by archaeologists, but it is now commonly identified with a site known from excavations near the mouth of the stream Shabla Dere, which was formerly believed to have been called Mesembria.