Samothrace (also known as Samothraki; Σαμοθράκη, samoˈθraci) is a Greek island in the northern Aegean Sea. It is a municipality within the Evros regional unit of Thrace. The island is long and is in size and has a population of 2,596 (2021 census). Its main industries are fishing and tourism. Resources on the island include granite and basalt. Samothrace is one of the most rugged Greek islands, with Mt. Saos and its highest peak Fengari rising to . The Winged Victory of Samothrace, which is now displayed at the Louvre in Paris, originates from the island.
Samothrace was not a state of any political significance in ancient Greece, since it lacks natural harbours, and most of the island is too mountainous for cultivation: Mount Fengari (literally 'Mt. Moon') rises to . It was, however, the home of the Sanctuary of the Great Gods, site of important Hellenic and pre-Hellenic religious ceremonies. Among those who visited this shrine to be initiated into the island cult were Lysander of Sparta, Philip II of Macedon and Lucius Calpurnius Piso Caesoninus, father-in-law of Julius Caesar.
The ancient city, the ruins of which are called Palaeopolis ("old city"), was situated on the north coast. Considerable remains still exist of the ancient walls, which were built in massive Cyclopean style, as well as of the Sanctuary of the Great Gods, where mysterious rites (Samothracian Mysteries) took place which were open to both slaves and free people (similar to the Eleusinian Mysteries). Demetrios of Skepsis mentions the Samothracian Mysteries; as does Aristophanes in his Peace.
The traditional account from antiquity is that Samothrace was first inhabited by Pelasgians and Carians, and later Thracians. At the end of the 8th century BC the island was colonised by Greeks from Samos, from which the name Samos of Thrace, that later became Samothrace; however, Strabo denies this. The archaeological evidence suggests that Greek settlement was in the sixth century BC.