David Kennedy may refer to:

Arts and entertainment David Kennedy (actor) (born 1964), British actor David Kennedy (born 1988), British musician performing as Pearson Sound David Kennedy (film producer) (1941–2015), American film producer David Kennedy (singer) (1825–1886), Scottish minister and tenor David J. Kennedy (painter) (1816/17–1898), Philadelphia painter David Michael Kennedy (born 1950), American fine art photographer

Politicians and government David Kennedy (Australian politician) (born 1940), politician and member of the Australian House of Representatives David B. Kennedy (1933–2019), member of the Wyoming House of Representatives David Kennedy (economist) (born 1969), British civil servant, formerly chief executive of the Committee on Climate Change David J. Kennedy (politician) (1907–1995), Maine politician and pharmacist David M. Kennedy (politician) (1905–1996), American businessman, economist and United States Secretary of the Treasury David T. Kennedy (1934–2014), American politician, mayor of Miami

Science and academics David Kennedy (astronomer) (1864–1936), first New Zealand born Marist priest, noted astronomer and educator David Kennedy (jurist) (born 1954), American legal academic, vice president of international affairs at Brown University David L. Kennedy (born 1948), Scottish Roman archaeologist and historian at the University of Western Australia and the University of Oxford David M. Kennedy (historian) (born 1941), Pulitzer Prize-winning historian and professor at Stanford David M. Kennedy (criminologist) (born 1958), American criminologist, author of Don't Shoot

Sports David Kennedy (hurler) (born 1976), Irish hurler David Kennedy (racing driver) (born 1953), Irish racing driver Dave Kennedy (footballer) (born 1949), English footballer David Kennedy (cricketer) (1890–1916), Scottish cricketer and soldier

Other (1955–1984), son of Robert F. Kennedy and member of Kennedy family David Kennedy (advertising) (1939–2021), American advertising executive, co-founder of the Wieden+Kennedy agency David Kennedy, 1st Earl of Cassilis (aft. 1463–1513), Scottish peer David Kennedy, 10th Earl of Cassilis (bef. 1734–1792), Scottish peer David S. Kennedy (1791–1853), Scottish-American merchant and banker