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 Bill Richardson (1947–2023), governor of New Mexico, U.S. secretary of energy, congressman; 2008 presidential candidate Friend Richardson (William Richardson, 1865–1943), 25th governor of California H. L. Richardson (Hubert Leon "Bill" Richardson, 1927–2020), California state senator Willy Bo Richardson (born 1974), American artist William Richardson (Maryland politician) (1735–1825), Revolutionary War soldier William Richardson (Mississippi politician) (1951–1997), Mississippi politician and teacher William Richardson (South Carolina politician) (1743–1786), South Carolina politician 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 E. Richardson (1886–1948), U.S. representative from Pennsylvania William Henry Richardson (1808–1878), Connecticut state legislator William M. Richardson (1774–1838), U.S. representative from Massachusetts, 1811–1814 William Richardson (Alabama politician) (1839–1914), U.S. representative from Alabama, 1900–1914 William P. Richardson (Ohio politician) (1824–1886), Republican politician from the state of Ohio, USA William P. Richardson (law school dean) (1864–1945), American co-founder and first dean of Brooklyn Law School William P. Richardson (New York politician) (1848–1923), New York politician William S. Richardson (1919–2010), lieutenant governor of Hawaii William O. Richardson (born 1954), American politician William U. Richardson, lawyer and member of the Louisiana House of Representatives Willie Richardson (anti-racism advocate), American civil rights activist and community advocate
Other Bill Richardson (Australian politician), Lord Mayor of Darwin 1957–1958 and 1969–1971 William Richardson (colonial administrator) (died 1829), deputy governor of Anguilla, Leeward Islands (UK) William Westbrooke Richardson (died 1771), high sheriff of Sussex, England, in 1770 William Richardson (Ontario politician), Canada
Sports Association football (soccer) Billy Richardson (footballer, born 1896) (1896–1959), English footballer Bill Richardson (footballer, born 1908) (1908–1985), English footballer William "Ginger" Richardson, known as W. G. Richardson (1909–1959), English footballer Billy Richardson (footballer, born 1920) (1920–2004), Irish soccer player Bill Richardson (footballer, born 1943), English footballer
Cricket William Richardson (Cambridge University cricketer) (1861–1933), English cricketer with Cambridge University William Richardson (New South Wales cricketer) (1866–1930), Australian cricketer with New South Wales William Richardson (Worcestershire cricketer) (1894–1971), English cricketer with Worcestershire William Richardson (Derbyshire cricketer) (born 1938), English cricketer with Derbyshire
Other sports Bill Richardson (baseball) (1878–1949), American baseball player William Richardson (footballer) (1880–1903), Australian rules footballer Bill Richardson (runner) (1903–1969), American Olympic runner Willie Richardson (1939–2016), American football wide receiver
Willie Richardson (wrestler), member of Da Soul Touchaz Will Richardson (American football) (born 1996), American football player Will Richardson (basketball) (born 1999), American basketball player William Ryder Richardson (1861–1920), English rugby union player
Religion William Richardson (martyr) (1572–1603), beatified Roman Catholic martyr William Richardson (bishop) (1844–1915), Anglican Bishop of Zanzibar, 1895–1901
Academics William Richardson (antiquary) (1698–1775), English academic and antiquary William Richardson (classicist) (1743–1814), Scottish professor and scholar William Richardson (astronomer) (1796–1872), British astronomer William J. Richardson (1920–2016), American philosopher William C. Richardson (1940–2021), president of Johns Hopkins University, 1990–1995 William D. Richardson (born 1951), director of the UCL Wolfson Institute since 2012 William Bebb Richardson (1912–2006), American mammalogist
Other William Anthony Richardson (1795–1856), sea captain and early California entrepreneur William Blaney Richardson (1868–1927), American-Nicaraguan naturalist W. P. Richardson (trade unionist) (William Pallister Richardson, 1873–1930), British trade unionist William R. Richardson (1929–2023), U.S. Army general William R. Richardson (Medal of Honor) (1842–1873), Union Army soldier and Medal of Honor recipient
William Richardson (songwriter), Tyneside songwriter Will Richardson (educator), author and blogger Bill Richardson (journalist) (1909–1986), British newspaper editor Bill Richardson (broadcaster) (born 1955), Canadian radio broadcaster and author Billy Richardson (Pony Express rider) (1834–1862)