David Duncan

David or Dave Duncan may refer to:

Arts and entertainment

 * David Duncan (writer) (1913–1999), American screenwriter and novelist; wrote the screenplay for The Time Machine
 * David Douglas Duncan (1916–2018), American photographer
 * Dave Duncan (writer) (1933–2018), Scottish-Canadian fantasy and science fiction writer
 * David James Duncan (born 1952), American novelist, essayist, and fly-fisher

Sports

 * Davie Duncan (1921–1991), Scottish footballer
 * Dave Duncan (baseball) (born 1945), American Major League Baseball player and pitching coach
 * David Duncan (footballer) (born 1963), Ghanaian football player and manager
 * David Duncan (ski cross) (born 1982), Canadian ski cross racer

Others

 * David Duncan (minister) (1789–1829), Scottish Presbyterian minister
 * David Duncan (politician) (1830–1886), British merchant and Liberal politician
 * David Duncan (diplomat) (1923–2007), British diplomat
 * David F. Duncan (born 1947), American epidemiologist and expert on drug abuse
 * David Ewing Duncan (born 1958), American journalist
 * David Duncan (accountant) (born 1960), United States government's star witness in the Arthur Andersen trial
 * David Duncan (vintner) (born 1965), American vintner and entrepreneur