William Richardson
William, Will, Willie, Bill or Billy Richardson may refer to:
Government and politics
Ireland
- William Richardson (1656–1727), MP for Armagh and Hillsborough
- William Richardson (died 1755) (1690–1755), MP for Augher
- William Richardson (1710–1758), MP for Armagh
- William Richardson (1749–1822), MP for Armagh
- Sir William Richardson, 1st Baronet (died 1830), MP for Augher and Ballyshannon
United States
- William Richardson (Maryland politician) (1735–1825), Revolutionary War soldier
- William Adams Richardson (1821–1896), Treasury secretary
- William Alexander Richardson (1811–1875), U.S. senator from Illinois
- William B. Richardson (1874–1945), Minnesota state senator
- William Emanuel Richardson (1886–1948), U.S. representatives from Pennsylvania
- William M. Richardson (1774–1838), U.S. representative from Massachusetts, 1811–1814
- William N. Richardson (1839–1914), U.S. representative from Alabama, 1900–1914
- William P. Richardson (1824–1886), Republican politician from the state of Ohio, USA
- William P. Richardson (New York) (1848–?), New York politician
- William S. Richardson (1919–2010), Lieutenant Governor of Hawaii
- Bill Richardson (born 1947), Governor of New Mexico, U.S. Secretary of Energy, US Congressman, and 2008 Democratic Presidential candidate
- H. L. Richardson (Hubert Leon "Bill" Richardson, born 1927), California state senator
Other
- William Richardson (governor) (died 1829), Deputy Governor of Anguilla
Sports
- William Richardson (cricketer, born 1861) (1861–1933), English cricketer with Cambridge University
- William Richardson (cricketer, born 1894) (1894–1971), English cricketer with Worcestershire
- William Richardson (cricketer, born 1938) (born 1938), English cricketer with Derbyshire
- William "Ginger" Richardson, known as W. G. Richardson, (1909–1959) English footballer
- Bill Richardson (footballer, born 1908) (1908–1985), English professional footballer
- Bill Richardson (footballer, born 1943) (born 1943), English professional footballer
- Billy Richardson (died 2004), Irish soccer player
- Willie Richardson (born 1939), American football wide receiver of the 1960s and '70s
- Bill Richardson (bodybuilder), former Mr. Universe (amateur) winner
- Bill Richardson (baseball) (1878–1949), American baseball player
- Willie Richardson (wrestler), member of the professional wrestling alliance Da Soul Touchaz
Religion
- William Richardson (martyr) (1572–1603), beatified Roman Catholic martyr
- William Richardson (bishop) (1844–1915), Anglican Bishop of Zanzibar, 1895–1901
- Willie Richardson (pastor), founder and Pastor of Christian Stronghold Baptist Church, Philadelphia, Pennsylvania
Academics
- William Richardson (antiquary) (1698–1775), English academic and antiquary
- William Richardson (classicist) (1743–1814), Scottish professor and scholar
- William J. Richardson (born 1920), American philosopher
- William C. Richardson (born 1940), President of Johns Hopkins University, 1990–1995
Other
- William A. Richardson (1795–1856), sea captain and early California entrepreneur
- William Pallister Richardson (1873–1930), British trade unionist
- William R. Richardson (born 1929), U.S. Army general
- William Richardson (songwriter), Tyneside songwriter
- Will Richardson, author and blogger
- Bill Richardson (journalist) (1909–1986), British newspaper editor
- Bill Richardson (radio) (born 1955), Canadian radio personality