Kilidülbahir (Turkish for "the key of the sea") is an ancient name for a Turkish village in the Eceabat District of Çanakkale Province, on the peninsula of Gallipoli (northwestern side of the Dardanelles).

[2] The ancient Cynossema (Ancient Greek: Κυνὸς σῆμα or Κυνόσσημα) was near there, and the naval Battle of Cynossema took place in 411 BC between the Athenian and the Spartan fleets during the Peloponnesian War.

[3] In legend, Cynossema is also known for being the burial place of Hecuba, who threw herself into the sea and was turned into a dog.

[4] The fort of Kilitbahir, in the form of a clover, was built by sultan Mehmed II.

This geographical article about a location in Çanakkale Province, Turkey is a stub.