Atatürk International Airport (formerly Yeşilköy International Airport) (IATA: IST, ICAO: LTBA) (Turkish: Atatürk Uluslararası Havalimanı) is the major international airport in Istanbul, Turkey. Located in Yeşilköy, on the European side of the city, it is 24 km (15 mi) west of the city centre. The airport is named in honor of Mustafa Kemal Atatürk, the founder and the first president of the Republic of Turkey. With total passenger traffic of 30 million for the year 2009, it is among the top 40 airports in the world in terms of total passenger traffic and top-30 in terms of international passenger traffic. It is Europe's 9th busiest airport.