David or Dave Williams may refer to:

Architects

• David Williams (Australian architect) (1856–1940), South Australian architect
• David L. Williams (architect) (1866–1937), American architect
• David Williams (Alaska architect) (fl. 1930s), architect and community planner in Alaska

Art

• David Dougal Williams (1888–1944), British artist and art teacher
• David E. Williams (1933–1985), American Kiowa-Tonkawa-Kiowa Apache painter from Oklahoma
• David B. Williams (artist) (1947–2009), Canadian Ojibway aboriginal painter and printmaker

Film, television and radio

• David Williams (screenwriter), British television screenwriter
• David Williams, Australian film distributor, 1984 winner of the Raymond Longford Award
• David Walliams (David Edward Williams, born 1971), British comedian and author, especially of children books
• Dave Williams (radio announcer) (born 1971), Australian radio host
• David Williams (producer), American film director and producer for ADV Films
• David L. Williams (film director), British film director

Law

• David Williams (died 1613), English Justice of the King's Bench, 1604–1613
• David W. Williams (1910–2000), American federal judge
• Sir David Williams (British legal scholar) (1930–2009), Vice-Chancellor of the University of Cambridge, 1989–1996
• Sir David Williams (arbitrator) (born 1941), New Zealand lawyer, jurist, and international arbitrator
• David C. Williams (inspector general) (born 1947), Inspector General of the U.S. Postal Service
• David Williams (New Zealand legal scholar)

Military and naval

• David Williams (pirate) (fl. 1698-1708), Welsh pirate active near Madagascar
• David Williams (soldier) (1754–1831), one of the captors of British spy John Andre in the American Revolutionary War
• Sir David Williams (Royal Navy officer) (1921–2012), British Royal Navy admiral, Second Sea Lord, 1974–1977

Music

• Dave "Fat Man" Williams (1920–1982), New Orleans jazz, blues, and rhythm and blues pianist
• David "Happy" Williams (born 1946), Trinidadian jazz double-bassist
• David Williams (guitarist) (1950–2009), American session guitarist
• Dave Williams (singer) (1972–2002), American rock singer
• David Williams (Australian indigenous musician) (born 1983), Aboriginal musician and artist
• David Williams (born 1986), Welsh guitarist in Son of Dork
• David Williams (born 1986), musician formerly with The Dear & Departed
• David Williams, Australian musician with Augie March
• David Williams, head of Shock Records
• David C. Williams (film composer), American film composer

Politics and government

• David Williams (died 1613), English MP for Brecon
• David Rogerson Williams (1776–1830), governor of South Carolina, 1814–1816
• David Williams (Liberal politician) (1799–1869), British Member of Parliament for Merioneth, 1868–1870
• David Williams (Swansea East MP) (1865–1941), Labour Member of Parliament for Swansea East, 1922–1940
• David G. Williams (died 1903), member of the Wisconsin legislature
• David C. Williams (politician), member of the California legislature
• D. J. Williams (politician) (David James Williams, 1897–1972), British miner and checkweighman who became a Labour Party Member of Parliament
• David B. Williams (politician) (1919–1994), American jurist and politician, member of the Massachusetts House of Representatives
• David Williams (trade unionist) (born 1926), Welsh trade unionist
• Delwyn Williams (David John Delwyn Williams, born 1938), British Conservative politician, MP for Montgomeryshire, 1979–1983
• Sir David Williams (Richmond upon Thames politician) (born 1939), Leader of Richmond upon Thames Council, 1983–2001
• David Williams (Australian politician) (born 1941), Australian politician
• David L. Williams (politician) (born 1953), Kentucky judge, president of the Kentucky Senate and 2011 gubernatorial nominee
• Dave Williams (Colorado politician), member of the Colorado House of Representatives
• Dave Williams (Iowa politician), member of the Iowa House of Representatives
• David Williams (civil servant) (born 1968), British civil servant

Religion

• David Williams (minister, born 1709) (1709–1784), Welsh independent minister and schoolmaster
• David Williams (philosopher) (1738–1816), Welsh minister, theologian and political polemicist
• David Williams (Oxford academic) (1786–1860), Vice-Chancellor of Oxford University, 1856–1858
• David Archard Williams (fl. 1865–1879), Welsh Anglican priest
• David Williams (priest, born 1841) (1841–1929), Archdeacon of Cardigan, 1903–1928
• David Williams (archdeacon of St David's) (1847–1920), Welsh Anglican priest
• David Williams (archbishop of Huron) (1853–1931), Welsh-born Anglican Bishop of Huron and later Metropolitan of Ontario
• David Williams (priest, born 1862) (1862–1936), Archdeacon of Cardigan, 1928–1936
• David Williams (Methodist minister, born 1877) (1877–1927), Welsh theologian and minister
• David Rhys Williams (1890–1970), American Unitarian minister
• David Williams (bishop of Basingstoke) (born 1961), Anglican Bishop of Basingstoke

Science and space

Sports

Writers

• David John Williams (1885–1970), Welsh-language writer and Welsh nationalist
• David Williams (historian) (1900–1978), Welsh historian
• Gwyn Williams (writer) (David Gwyn Williams, 1904–1990), Welsh poet, novelist, translator and academic
• David Williams (crime writer) (1926–2003), British advertising executive and crime writer
• David Williams (medievalist) (1939–2015), Canadian medieval literature scholar
• David J. Williams (born 1971), American science fiction writer and video game writer
• David Williams (journalist), Australian author and journalist
• David Williams (natural history writer), American natural history writer

Other people

• David Williams (businessman, born 1969), British entrepreneur and founder of Avanti Communications Group plc
• David Williams (coal owner) (1809–1863), Welsh industrialist
• David A. Williams, American president and CEO of the Make-A-Wish Foundation
• David Henry Williams (1819–1897), American railroad surveyor, civil engineer and writer
• David Marshall Williams (1900–1975), American inventor
• Russell Williams (criminal) (David Russell Williams, born 1963), Canadian convicted murderer, rapist, and officer in the Canadian Forces

Fictional characters

• Dave Williams (Desperate Housewives), a fictional character on the TV series Desperate Housewives
• David Williams, character in Another Man, Another Chance

See also

• Davey Williams (disambiguation)
• David William (1926–2010), British/Canadian actor and director