Kıyıköy, historically Medea (Bulgarian: Мидия; Greek: Μήδεια; Turkish: Midye), is a town (belde) in the Vize District, Kırklareli Province, Turkey.

The town has a small beach while the surrounding area is covered by dense forest mainly of oak.

Two streams, the Kazandere and the Pabuçdere, surround the town in the south and north respectively and flowi into the Black Sea.

The Kasatura Bay Nature Reserve Area is 18 km (11 mi) south of the town along the Black Sea and offers a pristine forest and beach.

[3]Medea remains a Roman Catholic titular see[4] In 2020 the Turkstream (Turkish: TürkAkım; Russian: Турецкий поток), a double gas pipeline from Anapa near Krasnodar in Russia, linked up with Kıyıköy and went into service.

The monastery was renovated in 1856 by Metropolitan bishop Matthaios, who also built a wooden annex in front of it (it no longer exists).

[5][6] Kıyıköy Fortress (Turkish: Kıyıkent Kalesi) is a fortification, also built during the reign of Justinian Il, that surrounds most of the old town.