William Thomas

William, Willie, Bill, or Billy Thomas may refer to:

Academics

 * William Isaac Thomas (1863–1947), American sociologist
 * William Jenkyn Thomas (1870–1959), Welsh headmaster and author
 * William Davies Thomas (1889–1954), Welsh literary scholar
 * William G. Thomas III (born 1964), American historian
 * C. William Thomas, American accounting academic

Literature

 * William Moy Thomas (1828–1910), English journalist, literary editor and novelist
 * William Thomas (Islwyn) (1832–1878), Welsh poet
 * William Thomas (Gwilym Marles) (1834–1879), Welsh poet
 * William Hannibal Thomas (1843–1935), American teacher, journalist, judge, writer and legislator
 * William Beach Thomas (1868–1957), British author and journalist
 * William F. Thomas (1924–2014), American newspaper editor

Performing arts

 * William C. Thomas (1903–1984), American film producer
 * Willie B. Thomas (1912–1977), American blues musician
 * Bill Thomas (costume designer) (1921–2000), American costume designer
 * William Thomas Jr. (child actor) (a.k.a. Billie "Buckwheat" Thomas, 1931–1980), American actor
 * Willie Thomas (trumpeter) (1931–2019), American jazz trumpeter and educator
 * William Thomas Jr. (1947–2020), American actor
 * Bill Thomas (actor) (born 1952), English actor
 * Billy Thomas (drummer) (born 1953), American drummer with McBride & the Ride
 * William Thomas (actor), Welsh actor

Visual arts

 * William Thomas (architect) (1799–1860), Anglo-Canadian architect
 * William Tutin Thomas (1829–1892), Anglo-Canadian architect
 * Bill Thomas (author) (1934–2009), American photojournalist

Business and industry

 * William Bevil Thomas (1757–1825), Newfoundland merchant and land developer
 * William Kyffin Thomas (1821–1878), Australian newspaper proprietor
 * William Luson Thomas (1830–1900), British wood-engraver and newspaper proprietor
 * William Thomas (miller) (1838–1891), Australian flour mill industrialist
 * William Winstead Thomas (1848–1904), American insurance company president and architect
 * Sir William James Thomas, 1st Baronet (1867–1945), Welsh industrialist and philanthropist
 * Bill Thomas (businessman) (born 1959), British business executive

Australia

 * William Thomas (Australian settler) (1793–1867), Australian colonist
 * William Thomas (Victorian politician) (1869–1924), Victorian politician
 * William Lemen Thomas (1872–1921), Western Australian politician
 * Bill Thomas (Australian politician) (born 1950), Western Australian politician

U.K.

 * William Thomas (MP for Old Sarum and Downton) (died 1554), Welsh MP for Old Sarum and Downton
 * William Thomas (MP for Caernarvonshire) (died 1586), English politician
 * William Thomas (MP for Carnarvon) (died 1653), Welsh politician
 * William Thomas (MP for Ludgershall) (1630–1686), English lawyer and politician
 * Sir William Thomas, 1st Baronet (1641–1706), English politician
 * Sir William Thomas, 2nd Baronet (died 1777), a Thomas baronet of Yapton
 * Sir William Thomas, 4th Baronet (1777–1850), a Thomas baronet of Yapton
 * Sir William Thomas, 5th Baronet (1807–1867), a Thomas baronet of Yapton
 * William Stanley Russell Thomas (1896–1957), British politician

U.S.

 * William C. E. Thomas (1818–1876), American civic leader
 * William H. Thomas (Wisconsin politician) (1821–1898), American politician
 * William W. Thomas Jr. (1839–1927), American diplomat and politician from Maine
 * William Hannibal Thomas (1843–1935), American teacher, journalist, judge, writer and legislator
 * William Reuben Thomas (1866–1943), American civic leader
 * W. Aubrey Thomas (1866–1951), US Representative from Ohio
 * William M. Thomas, African-American politician in South Carolina
 * William D. Thomas (1880–1936), American politician
 * William Kernahan Thomas (1911–2001), American judge
 * William Henry Thomas (1920–2009), American politician
 * Bill Thomas (Montana politician) (born 1935), American politician in Montana House of Representatives
 * Bill Thomas (born 1941), US Representative from California
 * Bill Thomas (writer) (born 1943), American legal and political author
 * Bill Thomas (Alaska politician) (born 1947), American politician in Alaska House of Representatives
 * William L. Thomas (born 1967), American jurist

Elsewhere

 * William Fitz Thomas, Irish judge
 * William Thomas (Newfoundland politician) (1785–1863), Newfoundland politician
 * William Howell Arthur Thomas (1895–1979), Canadian MP

Military

 * William ap Thomas (died 1445), Welsh soldier and sheriff
 * William Holland Thomas (1805–1893), American Confederate army officer
 * William Nathaniel Thomas (1892–1971), US Navy Chief of Chaplains
 * William Bain Thomas (1898–1967), British Army officer
 * William Garfield Thomas Jr. (1916–1942), American naval officer
 * William Waffle Thomas (1919–2014), American air force officer, former Air Force One pilot
 * William H. Thomas (Medal of Honor) (1923–1945), American soldier

Religion

 * William Thomas (bishop of Worcester) (1613–1689), Welsh Anglican bishop of Worcester
 * William Thomas (antiquary) (1670–1738), English Anglican priest and antiquary
 * William Thomas (chancellor of Llandaff Cathedral) (1734–1799), Welsh Anglican priest and scholar
 * William Griffith Thomas (1861–1924), English Anglican priest and theologian
 * William M. M. Thomas (1878–1951), American Episcopal bishop of the Missionary District of Brazil
 * William Nathaniel Thomas (1892–1971), American Methodist minister and US Navy Chief of Chaplains
 * William S. Thomas (1901–1986), American Episcopal suffragan bishop of the Diocese of Pittsburgh
 * William Thomas (archdeacon of Northumberland) (1927–2020), English Anglican priest
 * Bill Thomas (priest) (born 1943), British Anglican archdeacon of Llandaff

American football

 * William A. Thomas (1948–2019), American football coach
 * Bill Thomas (American football) (born 1949), American football player
 * Willie Thomas (Canadian football) (born 1955), Canadian football player
 * William Thomas (linebacker) (born 1968), American football player
 * William Thomas (offensive tackle) (a.k.a. Tra Thomas, born 1974), American football player

Association football (soccer)

 * William Thomas (footballer, born 1885) (1885–?), English soccer player
 * Billy Thomas (footballer, born 1903) (1903–1992), Welsh footballer
 * Bill Thomas (New Zealand footballer), New Zealand footballer

Australian rules football

 * Bill Thomas (Australian footballer) (1886–1974), Australian rules footballer
 * William "Digger" Thomas (1890–1953), Australian rules footballer
 * Billy Thomas (Australian footballer) (1902–1968), Australian rules footballer
 * Bill Thomas (footballer, born 1930), Australian rules footballer

Rugby

 * Willie Thomas (rugby union) (1866–1921), Welsh rugby union footballer
 * William Llewellyn Thomas (1872–1943), Welsh rugby union footballer
 * Willie Thomas (rugby league) (1881–1963), Welsh rugby league footballer
 * Billy Thomas (rugby league) (1907–1972), Welsh rugby league footballer
 * William Lewis Thomas (1913–1995), Welsh rugby union and rugby league footballer
 * Billy Thomas (rugby union) (1933–2013), Welsh rugby union player

Other sports

 * Bill Thomas (baseball) (1877–1950), American baseball player
 * Bill Thomas (sailor) (1918–1982), Canadian sailor
 * William Thomas (bowls) (born 1954), Welsh lawn and indoor bowler
 * William Thomas (cricketer) (born 1960), English cricketer
 * William Thomas (karateka) (born 1965), English karateka
 * Billy Thomas (basketball) (born 1975), American basketball player
 * Bill Thomas (ice hockey) (born 1983), American ice hockey player
 * William Thomas (basketball) (born 1986), American basketball player

Others

 * William Thelwall Thomas (1865–1927), Welsh surgeon
 * Wilhelm Meyer (Adolph Beck case) (a.k.a. William Thomas, ), gained notoriety in Adolph Beck case
 * William Thomas (activist) (1947–2009), American anti-nuclear activist
 * William H. Thomas (physician) (born 1959), American physician