The Greek torpedo boat Kydoniai () served in the Royal Hellenic Navy in 1920–1941. Originally the ship was the Austro-Hungarian Fiume-class torpedo boat SMS Tb 100-M. She was named for the ancient Greek city of Kydoniai (today known as Ayvalik) located in Anatolia; the city was part of the territory awarded to Greece for joining the side of the allied in the Treaty of Sèvres at the end of World War I. The ship, along with two sister ships of Monfalcone-built torpedo boats Kios and Kyzikos was transferred to Greece as a war reparation from the Central Powers in 1920.