William Thomas

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

• Billie Thomas (1931–1980), American actor
• Bill Thomas (actor) (born 1952), English actor
• Bill Thomas (author) (1934–2009), American author and photojournalist
• Bill Thomas (costume designer) (1921–2000), American costume designer
• William C. Thomas (1903–1984), American film producer
• William Thomas (actor), Welsh actor
• William Thomas (architect) (1799–1860), Anglo-Canadian architect
• William Thomas (Gwilym Marles) (1834–1879), Welsh poet
• William Thomas (Islwyn) (1832–1878), Welsh poet
• William Thomas Jr. (born 1947), American actor
• William Tutin Thomas (1829–1892), Anglo-Canadian architect
• Willie Thomas (trumpeter) (1931-2019), American jazz trumpeter and educator
• Willie B. Thomas (1912–?), American blues artist
• Will Thomas (novelist) (born 1958), American novelist
• Billy Thomas (born 1953), drummer with McBride & the Ride

US politicians

• Bill Thomas (born 1941), U.S. Representative from California
• Bill Thomas (Alaska politician) (born 1947), member of the Alaska House of Representatives
• Bill Thomas (Montana politician) (born 1935), Democratic Party member of the Montana House of Representatives
• Bill Thomas (writer) (born 1943), American writer
• William Thomas (North Carolina politician), 18th Century
• William D. Thomas (1880–1936), American politician
• William H. Thomas (Waukesha Co.) (1821–1898), American politician
• William Henry Thomas (1920–2009), American politician
• William L. Thomas (born 1967), American judge, nominated to a federal judgeship
• William Kernahan Thomas (1911–2001), American judge
• William Reuben Thomas (1866–1943), American civic leader
• W. C. E. Thomas (William C. E. Thomas, 1818–1876), American civic leader
• William W. Thomas Jr. (1839–1927), American politician
• W. Aubrey Thomas (1866–1951), U.S. Representative from Ohio

UK politicians

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

Other politicians

• William Thomas (Newfoundland politician) (1785–1863), Newfoundland politician
• William Thomas (Australian settler) (1793–1867), Australian colonist
• William Thomas (Australian politician) (1869–1924), Victorian politician
• William Lemen Thomas (1872–1921), Western Australian politician
• Bill Thomas (Australian politician) (born 1950), Western Australian politician

• W. I. Thomas (1863–1947), American sociologist
• William H. Thomas (physician) (born 1959), American physician

• William Holland Thomas (1805–1893), Cherokee chief and American Civil War officer
• William Bain Thomas (1898–1967), British Army officer
• William H. Thomas (Medal of Honor) (1923–1945), American soldier
• William Waffle Thomas (1919–2014), American Air Force officer, former Air Force One pilot
• William Garfield Thomas Jr. (1916–1942), United States Navy officer
• William Nathaniel Thomas (1892–1971), US Navy Chief of Chaplains

• Bill Thomas (died 2009), American racecar designer and performance tuner best known for the Bill Thomas Cheetah
• Bill Thomas (American football) (born 1949), American football player
• Bill Thomas (baseball) (1877–1950), American baseball player
• Bill Thomas (ice hockey) (born 1983), American ice hockey player
• Bill Thomas (New Zealand footballer), New Zealand footballer
• Bill Thomas (Australian footballer) (1886–1974), Australian rules footballer
• Bill Thomas (sailor) (born 1925), Canadian former sailor
• Billy Thomas (Australian footballer) (1902–1968), Australian rules footballer
• Billy Thomas (basketball) (born 1975), American basketball player
• Billy Thomas (footballer) (1903–1992), Welsh footballer
• William A. Thomas (1948-2019), American football player and coach
• William "Digger" Thomas (1890–1953), Australian rules footballer
• William Lewis Thomas (1913–1995), Welsh rugby union, and rugby league footballer
• William Llewellyn Thomas (1872–1943), Welsh rugby union footballer
• William Thomas (cricketer, born 1960), English cricketer
• William Thomas (footballer, born 1885) (1885–?), English soccer player
• William Thomas (karateka) (born 1965), English karateka
• William Thomas (linebacker) (born 1968), American football player
• William Thomas (rugby league, born c. 1885) (c. 1885–?), Welsh rugby league footballer
• William Thomas (rugby league, born c. 1905) (c. 1905–?), Welsh rugby league footballer
• Willie Thomas (1866–1921), Welsh rugby union footballer
• Will Thomas (basketball) (born 1986), American basketball player
• Tra Thomas (William Thomas, III, born 1974), former American football offensive tackle
• Bill Thomas (footballer, born 1930) (born 1930), Australian footballer

• William ap Thomas (died 1445), Welsh soldier and sheriff
• William Bevil Thomas (1757–1825), Newfoundland merchant and land developer
• William Davies Thomas (1889–1954), Welsh academic
• William Griffith Thomas (1861–1924), English clergyman
• William Luson Thomas (1830–1900), British wood-engraver and newspaper proprietor
• William Fitz Thomas (fl. 15th century), Irish judge
• "William Thomas", an alias of Wilhelm Thomas, who gained notoriety in the Adolph Beck case
• William Thomas (bishop) (1613–1689), bishop of Worcester
• William S. Thomas (died 1986), suffragan bishop of the Episcopal Diocese of Pittsburgh
• William Thomas (Chancellor of Llandaff Cathedral) (1734–1799), Welsh priest and scholar
• William Thomas (Archdeacon of Northumberland) (born 1927), English priest
• William Thomas (activist) (1947–2009), American anti-nuclear activist
• William F. Thomas (1924–2014), American newspaper editor
• William Jenkyn Thomas (1870–1959), Welsh author
• William Kyffin Thomas (1821–1878), newspaper proprietor in South Australia
• William Moy Thomas (1828–1910), English journalist
• Bill Thomas (priest) (born 1943), Archdeacon of Llandaff
• William Beach Thomas (1868–1957), British author and journalist
• William Hannibal Thomas (1843–1935), American teacher, journalist, judge, writer and legislator
• William Thelwall Thomas (1865–1927), Welsh surgeon
• C. William Thomas, American accountant
• William Winstead Thomas (1848–1904), American insurance company president and architect
• William G. Thomas III, American historian