Constanța (UK: , US: , Romanian: [konˈstantsa] (listen); Greek: Κωνστάντζα, romanized: Kōnstántza, or Κωνστάντια Kōnstántia; Bulgarian: Кюстенджа, romanized: Kjustendža, or Констанца Konstanca; Turkish: Köstence), historically known as Tomis (Ancient Greek: Τόμις), is the oldest continuously inhabited city in Romania. It was founded around 600 BC.
The city is located in the Northern Dobruja region of Romania, on the Black Sea coast. It is the capital of Constanța County and the largest city in the region of Dobruja. As of the 2011 census, Constanța has a population of 283,872, making it the fifth most populous city in Romania. The Constanța metropolitan area includes 14 localities within 30 km (19 mi) of the city, and with a total population of 425,916 inhabitants, it is one of the largest metropolitan areas in Romania. The Port of Constanța has an area of 39. 26 km2 (15. 16 sq mi) and a length of about 30 km (19 mi). It is the largest port on the Black Sea, and one of the largest ports in Europe. According to Jordanes (after Cassiodorus), the foundation of the city was ascribed to Tomyris the queen of the Massagetae (The origin and deeds of the Goths):"After achieving this victory (against Cyrus the Great) and winning so much booty from her enemies, Queen Tomyris crossed over into that part of Moesia which is now called Lesser Scythia - a name borrowed from Great Scythia -, and built on the Moesian shore of the Black Sea the city of Tomi, named after herself. "