Marie Henriette Steil (1898–1930) was a Luxembourg writer and feminist.Born on 3 August 1898 in Luxembourg, she is known to have been keen to assert her independence as a woman and to have promoted feministic trends such as a boyish hairstyle. After publishing some short pieces in Les Cahiers luxembourgeois, she aspired to become a professional writer but died when she was only 32. Marie Henriette Steil died in Luxembourg City on 18 December 1930 when she was only 32. In September 2005, the Luxembourg Post Office issued a stamp in her memory bearing the sketched portrait displayed here.