William Phelps

William Phelps may refer to:


 * Bill Phelps (1934–2019), Lieutenant Governor of Missouri
 * William Phelps (colonist) (1599–1672), one of the founders of Windsor, Connecticut
 * William Phelps (priest) (1797–1867), Church of England cleric
 * William E. Phelps (1835–?), American politician from Illinois
 * William F. Phelps (1822–1907), educational pioneer and author
 * William H. Phelps Sr. (1875–1965), American ornithologist and businessman.
 * William H. Phelps Jr. (1902–1988), Venezuelan ornithologist and businessman.
 * William J. Phelps (1808–1883), Illinois legislator
 * William Lyon Phelps (1865–1943), American author and critic
 * William Preston Phelps (1848–1917), American landscape painter
 * William Wallace Phelps (1826–1873), United States Representative from Minnesota
 * William Walter Phelps (1839–1894), United States Representative from New Jersey
 * W. W. Phelps (Mormon) (1792–1872), early convert and leader in the Latter Day Saint movement
 * M. William Phelps (born 1968), American crime writer and investigative journalist