In the ancient world, Thynia was a region of Europe along the northern coast of the Propontis, opposite Bithynia on the Asian side. It was originally occupied by the Thyni, a Thracian people who came from Thrace. Note that in the Middle Ages, Mesothynia was the peninsula of modern Kocaeli.
According to Greek mythology, its name came from Thyneas son of Phineas.
