Guangzhou Baiyun International Airport (IATA: CAN, ICAO: ZGGG) is the international airport serving Guangzhou, the capital of Southern China's Guangdong province.

The two airport codes were inherited from the former Baiyun Airport, and the IATA code is derived from Guangzhou's historical romanization Canton. Baiyun Airport serves as a hub for China Southern Airlines, FedEx Express, 9 Air, Hainan Airlines and Shenzhen Airlines. In 2020, due to the impact of the COVID-19 pandemic on aviation, it was the world's busiest airport by passenger traffic, handling 43.8 million passengers.

In 2021, Guangzhou Baiyun International Airport was the world's eighth-busiest airport by passenger traffic, with 40.2 million passengers handled, making it also the busiest airport outside the United States, and the busiest in China. As for cargo traffic, the airport was China's second-busiest, as well as the second-busiest airport worldwide in terms of aircraft movements.