William Hilliard (1778–1836) was a publisher and bookseller in Boston and Cambridge, Massachusetts in the early 19th-century.[1] He worked with several business partners through the years, including Jacob Abbot Cummings, James Brown, and Charles C. Little. President Thomas Jefferson selected his firm to supply approximately 7,000 volumes on numerous topics in 1825-1826, to create the University of Virginia Library.