Gerda Marie Frederikke Wegener (née Gottlieb; 15 March 1886 – 28 July 1940) was a Danish illustrator and painter. Wegener is known for her fashion illustrations and later her paintings that pushed the boundaries of gender and love of her time. These works were classified as lesbian erotica at times and many were inspired by her partner, the transgender woman Lili Elbe. Wegener employed these works in the styles of Art Nouveau and later Art Deco.