Hong Kong International Airport (IATA: HKG, ICAO: VHHH) is an international airport located on the island of Chek Lap Kok in western Hong Kong. The airport is also referred to as Chek Lap Kok International Airport or Chek Lap Kok Airport, to distinguish it from its predecessor, the former Kai Tak Airport.

Opened in 1998, Hong Kong International Airport is the world's busiest cargo gateway and one of the world's busiest passenger airports. It is also home to one of the world's largest passenger terminal buildings, which was the largest when the airport opened.

The airport is operated by Airport Authority Hong Kong (AAHK), a statutory body of the Hong Kong government established on 1 December 1995. It runs 24 hours a day and is the primary hub for Cathay Pacific, Greater Bay Airlines, Hong Kong Airlines, HK Express and Air Hong Kong (cargo carrier). The airport is one of the hubs of Oneworld, and is also one of the Asia-Pacific cargo hubs for UPS Airlines. It is a focus city for China Airlines and China Eastern Airlines. Ethiopian Airlines utilizes Hong Kong as a stopover point for their flights.

HKIA, which employs approximately 65,000 people, is an important contributor to Hong Kong's economy.