Mary Dill Henry (1913-2009) was a painter, designer, and mosaicist from California and Seattle, Washington, whose work was characterized by geometric abstraction. She studied at the San Francisco Art Institute and worked at Hewlett-Packard drafting engineering renderings. Later, she created mosaics for the outside of the Hewlett-Packard offices. Henry's work is in the collections of the Seattle Art Museum, Tacoma Art Museum, Portland Art Museum, Institute of Design IIT, Microsoft, Safeco, and Hewlett-Packard, among many others.