Tarsus (ˈtɑrsəs; Hittite: 𒋫𒅈𒊭 Tārša; Ταρσός Tarsós; Տարսոն Tarson; طَرسُوس Ṭarsūs) is a historic city in south-central Turkey, inland from the Mediterranean. It is part of the Adana-Mersin metropolitan area, the fourth-largest metropolitan area in Turkey. Tarsus forms an administrative district in the eastern part of Mersin Province and lies at the heart of the Çukurova region.
With a history going back over 6,000 years, Tarsus has long been an important stop for traders and a focal point of many civilisations. During the Roman Empire, it was the capital of the province of Cilicia. It was the scene of the first meeting between Mark Antony and Cleopatra, and the birthplace of Paul the Apostle.
Tarsus is served by Adana Şakirpaşa Airport and is connected by Turkish State Railways to both Adana and Mersin.
The ancient name Tarsos is derived from Tarsa, the original name given to the city by the Hittites, who were among the earliest settlers of the region. That in turn was possibly derived from the name of the storm god Tarḫunz. During the Hellenistic era Tarsus was known as Antiochia on the Cydnus (Αντιόχεια του Κύδνου, Antiochia ad Cydnum), to distinguish it from Syrian Antioch. The Romans knew it as Juliopolis, while it was Darson in Western Armenian and Tarson in Eastern Armenian.
According to the Suda, the city was founded by Perseus after he fought the Isaurians and the Cilicians. An oracle told him to found a city in the place where the flat (ταρσός) of his foot would touch the earth while he was dismounting from his horse after the victory.
Located on the mouth of the Berdan River (Cydnus in antiquity), which empties into the Mediterranean, Tarsus sits at a junction where land and sea routes connecting the Cilician plain (today called Çukurova), central Anatolia and the Mediterranean Sea meet. The climate is typical of the Mediterranean region, with very hot, humid summers and chilly, damp winters.
Tarsus has a long history of commerce, and is still a commercial centre today, trading in the produce of the fertile Çukurova plain.