George Best Belfast City Airport (IATA: BHD, ICAO: EGAC) is a single-runway airport in Belfast, Northern Ireland. Situated in County Down, it is adjacent to the Belfast Harbour and is 3 miles (4.8 km) from Belfast City Centre. It shares the site with the Spirit AeroSystems (formerly Short Brothers/Bombardier) aircraft manufacturing facility. The airport began commercial operations in 1983, and was known as "Belfast City Airport" until it was renamed in 2006 in memory of George Best, the professional footballer from Belfast. The airport has a CAA public use aerodrome licence (number P862) that allows flights for the public transport of passengers or for flying instruction.

As of February 2024, 6 airlines operate 30 routes across the UK and Europe from Belfast City Airport. In 2023, the airport handled over 2.1 million passengers, having peaked at 2.7 million in 2010. The airport serves as a regional base for Aer Lingus and British Airways who are the largest operators there. Ground handling is provided by Swissport and Menzies Aviation, the latter also offering cargo handling services.