Alexandra Exter (January 6, 1882 – March 17, 1949) was a Russian-Ukrainian painter (Cubo-Futurist, Suprematist, Constructivist), designer, and one of the founders of Art Deco.

She was born 1882 in Russia. She studied at Kiev art school, then in 1907 attended Académie de la Grande Chaumière in Montparnasse, Paris. From 1908 to 1924 she intermittently lived in Kiev, St. Petersburg, Odessa, Paris, Rome and Moscow.

In 1908 she participated in an exhibition together with members of the group Zveno (Link) organized by David Burliuk, Wladimir Burliuk and others in Kiev. In 1914 Exster, together with Kazimir Malevich, Alexander Archipenko, Vadym Meller, Sonia Delaunay- Terk and others, participated in Salon des Indépendants exhibitions in Paris. In the same year she participated in International Futurist Exhibition in Milan. In 1915 she joined the group of avant-garde artists Supremus.

In 1924 she emigrated to France to become a Professor at the Academie der Moderne in Paris. From 1926 to 1930 Exter was a professor at Leger's Academie d'Art Contemporain. In 1936 she participated in exhibition Cubism and Abstract Art in New York and went on to have solo exhibitions in Prague and in Paris. She died 1949 in the Paris suburb of Fontenay-aux-Roses.

Her works are in the State Russian Museum in St. Petersburg, Tretyakov gallery in Moscow, Thyssen-Bornemisza Museum in Madrid, Hirshhorn Museum and Sculpture Garden in Washington D.C., Fine Arts Museums of San Francisco, Museum of Modern Art in New York City, Art Institute of Chicago.