David or Dave Douglas may refer to:
Sports
Music
Nobility
Other
- David Douglas (botanist) (1799–1834), Scottish botanist
- David Douglas (publisher) (1823–1918), Scottish publisher
- David C. Douglas (1898–1982), British historian of the Normans
- David Douglas (director) (born 1953), Canadian cinematographer, director and writer
- David L. Douglas (1845–1913), American businessman and politician
- David "Dathaí" Douglas, (died 2016) an Irish criminal
- David Douglas, character in An Act of Murder
- David Douglas High School, a public high school in Portland, Oregon, United States, named after the Scottish botanist