Gull-wing, gull wing or gullwing may refer to: A wing of a gull Geography Gullwing lake, a freshwater lake near Dryden, Ontario Designs resembling gull-wings Gull wing, an aircraft wing configuration Gull-wing door, a car door that is hinged at the roof Gull wing, a format for leads of a Small Outline Integrated Circuit Mercedes-Benz 300 SL Gullwing car Gull Wing Bridge, a lifting bridge in Lowestoft, England Medicine Gull-wing deformity of erosive osteoarthritis