Douglas Hollis (b. 1948) is a San Francisco–based artist who has been an important contributor to the Exploratorium since the mid-1970s. Hollis works with wind- and water-activated sound sculptures, often in site-specific situations. He has created numerous permanent and temporary sound installations around the United States. Hollis has created permanent works for the Port of Los Angeles, the New Denver Airport, and the Lawrence Hall of Science in Berkeley, California. His temporary works include commissions for the Walker Art Center in Minneapolis, Minnesota, the de Young Museum in San Francisco, and the San Francisco Art Institute.