Margarete Heymann, also known as Margarete Heymann-Löbenstein, Margarete Heymann-Marks, and Grete Marks, was a German ceramic artist of Jewish origin and a Bauhaus student. In 1923 she founded the Haël Workshops for Artistic Ceramics at Marwitz that she had to close in 1933 and settled in Jerusalem. She moved to Britain in 1936 and continued her work, becoming world famous as “Greta Pottery”. Her finest work is considered to be from her working period in Germany.