Märta Livia Vilhelmina Måås-Fjetterström was a leading Swedish textile artist in the early 20th-century. She is remembered in particular for the weaving studio she opened in Båstad in 1919 and for the decorative rugs she produced from the 1910s to the 1930s, increasingly combining rural Nordic traditions with modernist trends. Her works are exhibited in some of the world's most important art museums, including New York's Metropolitan Museum of Art and London's Victoria and Albert Museum.