Billy Bishop Toronto City Airport is a regional airport located on the Toronto Islands in Toronto, Ontario, Canada. It is often referred to as Toronto Island Airport and was previously known as Port George VI Island Airport and Toronto City Centre Airport. The airport's name honours Billy Bishop, the Canadian World War I flying ace and World War II Air Marshal. It is used by civil aviation, air ambulances, and regional airlines using turboprop planes. In 2022, it was ranked Canada's ninth-busiest airport.

An IATA airport code, also known as an IATA location identifier, IATA station code, or simply a location identifier, is a three-letter geocode designating many airports and metropolitan areas around the world, defined by the International Air Transport Association (IATA). The characters prominently displayed on baggage tags attached at airport check-in desks are an example of a way these codes are used.