Duncan is a surname. For the etymology of the surname Duncan this web page cites: Dictionary of American Family Names. Another opinion is that the Gaelic Donnchadh is composed of the elements donn, meaning "brown"; and chadh, meaning "chief" or "noble". In some cases when the surname originates in (Sligo) Ireland it is an Anglicised form of the Gaelic Ó Duinnchinn, meaning "descendant of Donncheann". The Gaelic Donncheann is a byname composed of the elements donn, meaning "brown-haired man" or "chieftain"; and ceann, meaning "head". The surname Duncan is represented in Scottish Gaelic as MacDhonnchaidh.
Adam Duncan, British admiral
Donald B. Duncan (1896-1975), American vice-admiral
Donald W. Duncan (b. 1930), American soldier and anti-war activist
Henry Duncan, British naval officer
W. G. G. Duncan Smith, World War II air ace
Alex Duncan (1900-1984), former Australian rules footballer with Carlton (1921-1924, 1926-1930)
Andy Duncan (basketball) (1922-2006), American basketball player
Chris Duncan (born 1981), American baseball player
Dave Duncan (baseball) (born 1945), Major League Baseball player and pitching coach - father of Chris Duncan and Shelley Duncan
Darryl Duncan, Australian rugby league footballer
Ian Duncan (born 1961), Kenyan rally driver
Jeff Duncan (baseball) (born 1978), American baseball player and coach
John Duncan (footballer) (born 1949), Scottish footballer who notably played for Dundee and Tottenham Hotspur
Johnny Duncan (footballer) (1896-1966), Scottish international footballer and manager, who was most notably with Leicester City
Ken Duncan (American football) (born 1946), American football player
Mariano Duncan, (born 1963)Dominican baseball player
Ross Duncan (born 1944), Australian cricketer
Scott Duncan (footballer) (1888–1976), former Scottish football player and manager
Shelley Duncan, American baseball player
Tim Duncan (born 1976), American basketball player
Vern Duncan (1890–1954), American baseball player
Carmen Duncan (born 1942), Australian actress
Lindsay Duncan (born 1950), British actress
Michael Clarke Duncan (1957-2012), American actor
Sandy Duncan (born 1946), American actress
Alan Duncan (born 1957), British politician
Arne Duncan (born 1964), U.S. Secretary of Education (2009-); politician
Charles William Duncan, Jr., former U.S. Secretary of Energy
Jimmy Duncan, American politician
Ken Duncan (born 1945), former Louisiana state treasurer
Leslie Samuel Duncan (1880–1952), newspaper editor and politician in South Australia
Mike Duncan, Former chairman of the Republican National Committee in the United States
Peter Duncan (British politician), Scottish conservative
Peter Duncan (Australian politician), Labor representative in South Australian and federal parliaments
Walter Leslie Duncan (1883–1947) Australian Senator for New South Wales
Sir Walter Gordon Duncan (1885–1963) South Australian pastoralist and MLC
Walter Hughes Duncan (1848–1906) South Australian pastoralist and MHA for Burra
William A. Duncan, U.S. Congressman from Pennsylvania
Lesley Duncan, English singer and songwriter
Tim Duncan (singer), Southern Gospel singer
Trevor Duncan, English composer
Alasdair Duncan, Australian writer
Dan Duncan (1933-2010), American businessman
Dave Duncan (writer), Canadian writer
David Duncan, government witness in the Enron scandal
David F. Duncan, epidemiologist and drug policy adviser to former US president Bill Clinton
Donald F. Duncan, Sr., American entrepreneur and inventor, most commonly associated with Yo-yos
George Smith Duncan, a tramway and mining engineer
Glen Duncan (born 1965), British author
Graham Duncan (botanist), botanist at Kirstenbosch Botanic Garden, South Africa
Helen Duncan (1897–1956), Scottish medium
Henry Duncan (1774–1846), founder of the first Trustee Savings Bank
Iain Duncan Smith, British politician
Isadora Duncan, American dancer
Jane Duncan (1910–1976), pseudonym of Scottish writer Elizabeth Jane Cameron
Jane Duncan (architect) (born 1953), British architect
Joseph E. Duncan III, notorious American murderer and sexual predator
Ken Duncan (photographer) (born 1954), Australian photographer
Leslie Samuel Duncan (1880–1952), newspaper editor and politician in South Australia
Lois Duncan (1934–2016), American writer of children's books
Mike Duncan (podcaster), U.S. history podcaster and writer
Robert Duncan (poet), U.S. beat poet
Scott Duncan (businessman), American billionaire
Stephen Duncan (1787-1867), American plantation owner in the Antebellum South
Thomas Eric Duncan (1972-2014), first Ebola victim of the 2014 West African outbreak to develop symptoms while in the US
Walter Duncan (1848-1932), British painter
Walter Jack Duncan (1881–1941), war artist for the US Army during World War I
Warren W. Duncan (1857-1938), American jurist
Duncan (surname) Wikipedia (Text) CC BY-SA