William Eugene Stumpf (March 1, 1936 – August 30, 2006) was an American furniture designer who helped design the Aeron, Embody and Ergon chairs for Herman Miller.
It was at the University of Wisconsin-Madison where Stumpf, working with specialists in orthopedic and vascular medicine, conducted extensive research into ergonomics, specifically in the way people sit. In 1974, Herman Miller commissioned him to apply his research to office seating. Two years later, the Ergon chair was introduced.