Margarete Rumpf (1862–1928) was a German designer and artist celebrated for her contributions to early 20th-century decorative art and book design. Based in Potsdam, she specialized in the intricate craft of Buntpapier (decorated paper), mastering historic techniques like Tunkpapier (marbled paper) to create hypnotic, organic patterns. Rumpf’s abstract, flowing designs bridged the gap between traditional craft and early abstract modernism, turning functional paper arts into highly collectible visual pieces.