William Duckworth (January 13, 1943 – September 13, 2012) was an American composer, author, educator, and Internet pioneer. He wrote more than 200 pieces of music and is credited with the composition of the first postminimal piece of music, The Time Curve Preludes (1977–78), for piano. Duckworth was a Professor of Music at Bucknell University. Together with Nora Farrell, his wife, he ran Monroe Street Music, the publisher of many Duckworth's pieces.