David Cox may refer to:

David A. Cox (born 1948), American mathematician

David Cox (artist) (1783–1859), British landscapist

David Cox (Australian politician) (born 1954), Australian federal politician

David Cox (footballer) (born 1989), Scottish footballer

David Cox (gymnast) (born 1970), British Olympic gymnast

David Cox (Marine) (1966–1994), U.S. Marine found killed by an unknown assailant

David Cox (statistician) (1924–2022), English statistician

David Cox (1960s cricketer) (born 1946), British cricketer, played for Somerset

David Cox (1990s cricketer) (born 1972), British cricketer, played for Durham

David Cox (Scottish cricketer) (born 1973), Scottish cricketer

David Cox Jr. (1809–1885), British landscapist

David Cox (composer) (1916–1997), British composer

David Cox (basketball) (born 1973), American college basketball coach

David Cox, musician of London-based duo AutoKratz

Dave Cox (1938–2010), American politician

David Cox