David or Dave Clark may refer to:

• Dave Clark (Canadian musician), former member of Rheostatics
• Dave Clark (musician) (born 1939), English drummer who formed and led the Dave Clark Five
• Dave Clark (promoter) (1909–1995), African-American record promoter and songwriter

• David Clark, Baron Clark of Windermere (born 1939), British politician
• Dave Clark (Canadian politician), Progressive Conservative Canadian politician
• David C. Clark (1926–2015), American politician from the state of Florida
• David M. Clark (politician) (1824–1907), American politician in Iowa
• David Worth Clark (1902–1955), Democratic U.S. Representative and Senator representing Idaho
• David Clark (New Zealand politician) (born 1973), Labour MP for Dunedin North since 2011
• David Clark (Georgia politician) (born 1986), Republican State Representative for Georgia's 98th District
• David Clark (Utah politician) (born 1953), Republican State Representative for Utah's 74th District

• Dave Clark (baseball) (born 1962), baseball player
• David Clark (cricketer) (1919–2013), English cricketer
• David Clark (footballer, born 1878), Irish footballer
• Dave Clark (pole vaulter) (1936–2018), American Olympic athlete
• David Clark (racing driver) (born 1978), Australian race car driver
• David Clark (rower) (born 1959), Olympic silver medal winner
• David Clark (rugby union) (born 1940), former Australian rugby union footballer and current coach
• Dave Clark (sprinter), Scottish athlete at the 1990 Commonwealth Games
• Dave Clark (television presenter), presenter on Sky Sports
• David K. Clark (born 1953), British-born jockey

• Dave Clark, the Midnight comic book superhero
• David Clark (1816 ship), a convict ship
• David Clark, 2008 winner of BBC's Mastermind quiz show
• David Clark (cartoonist), American illustrator
• David Aaron Clark (1960–2009), pornographic actor and director
• David B. Clark, American Latter Day Saint leader
• David D. Clark (born 1944), American Internet pioneer
• David Delano Clark (1924–1997), American physicist
• David L. Clark (1864–1939), Pittsburgh businessman and inventor of the Clark bar
• David Leigh Clark, American paleontologist
• David Clark (psychiatrist) (1920–2010), British psychiatrist who pioneered therapeutic communities in mental hospitals
• David M. Clark (born 1954), British psychologist
• David Worth Clark (1902–1955), educator, media executive and President of Palm Beach Atlantic University

• David Clark Company, a manufacturer of headphones used in professional applications
• The Dave Clark Five, a musical group
• David Clarke (disambiguation)