İzmir is the third most populous city in Turkey, after Istanbul and Ankara. It is on the Aegean coast of Anatolia, and is the capital of İzmir Province. As of 2024, İzmir Province has a total population of 4,493,242 while İzmir city is home to around 3.3 million inhabitants. It extends along the outlying waters of the Gulf of İzmir and inland to the north across the Gediz River Delta; to the east along an alluvial plain created by several small streams; and to slightly more rugged terrain in the south. İzmir's climate is Mediterranean.
İzmir has more than 3,000 years of recorded urban history, and up to 8,500 years of history as a human settlement since the Neolithic period. In classical antiquity, the city was known as Smyrna – a name which remained in use in English and various other languages until around 1930, when government efforts led the original Greek name to be gradually phased out internationally in favor of its Turkish counterpart İzmir.