David or Dave Harper may refer to:

• David Harper (pseudonym), pseudonym of novelist Edwin Corley (1931–1981)
• David M. Harper (architect) (born 1953), American architect and design/build entrepreneur
• David W. Harper (born 1961), American actor
• David Harper (antiques expert) (born 1967), British TV antiques expert and writer
• David Harper (General Hospital), fictional character in the soap opera General Hospital

• David M. Harper (zoologist) (born 1950), English zoologist
• David Harper (biologist), lecturer in evolutionary biology at the University of Sussex, England
• David Harper (palaeontologist), British palaeontologist, professor at Durham University

• Dave Harper (baseball) (1917–1996), American Negro leagues baseball player
• Dave Harper (footballer) (1938–2013), English footballer
• Dave Harper (American football) (born 1966), American football linebacker in the NFL

• David Harper (judge), Australian judge

• This is David Harper, a television parody show, originally called This is David Lander