King Shaka International Airport (IATA: DUR, ICAO: FALE), abbreviated KSIA, pronounced as (Kīng Shāk(k)ā Internashonāl Ay(ir)port), is the primary international airport serving Durban, South Africa. It is located in La Mercy, KwaZulu-Natal, approximately 35 km (22 mi) north of the city centre of Durban. The airport opened its doors to passengers on May 1, 2010, 41 days before the start of the 2010 FIFA World Cup. It replaced Durban International Airport (ICAO: FADN) and uses the same IATA airport code. The airport was designed by Osmond Lange Architects and Planners and cost R 6,800,000,000 (about US$900 million).

Although the larger airport was built to grow the area's international services, it is also a key airport for domestic services throughout South Africa, serving the "Golden Triangle" between Cape Town International Airport, O. R. Tambo International Airport in Johannesburg, and KSIA itself with seven passenger and two cargo airlines offering domestic air services.

The airport forms part of the Dube TradePort, which will additionally consist of a trade zone linked to the airport's cargo terminal, facilities to support the airport such as nearby offices and transit accommodations for tourists, an integrated agricultural export zone, and an IT platform.

The largest aircraft KSIA currently has scheduled services for is the Boeing 777-300ER, with Emirates operating Dubai–Durban, although KSIA's runway length and terminal can handle the world's largest passenger aircraft, the Airbus A380, and smaller Boeing 747. In September 2015, during the World Routes Conference, which was held in Durban (the first time on African soil), Turkish Airlines announced a new international service to Istanbul and Qatar Airways announced the commencement of service to Doha in December of that year.

On 27 January 2014, an Airbus A380-841 of British Airways landed at KSIA becoming the first A380 to do so.