The term gull-wing door is an automotive industry term describing car doors which are hinged at the roof rather than the side. They are so named because, when opened, the doors evoke the image of a seagull's wings.

Conventional car doors are typically hinged at the front-facing edge of the door and allow the door to swing outward from the body of the car.

The most well-known examples of road-cars with gull-wing doors are the Mercedes-Benz 300SL from the 1950s, the Bricklin SV-1 from the 1970s and the De Lorean DMC-12 from the 1980s.