City of Derry Airport (Irish: Aerfort Chathair Dhoire) (IATA: LDY, ICAO: EGAE), previously known as RAF Eglinton and Londonderry Eglinton Airport, is a regional airport located 7 mi (11 km) northeast of Derry, Northern Ireland. It is located on the south bank of Lough Foyle, a short distance from the village of Eglinton and 8 mi (13 km) from the city centre.

The airport, also known locally as Eglinton Airport, has experienced a decline in passenger numbers in recent years. In 2023, 154,486 passengers used the airport, having peaked at 438,996 in 2008. The airport is currently a base for the Scottish regional airline Loganair, who operate domestic flights to other parts of the UK. Other airlines who serve the airport include: Ryanair, Air Nostrum and BA Cityflyer.