David Williamson
David Williamson is the name of the following people:
- David Williamson, Baron Williamson of Horton (1934–2015), British civil servant and politician
- David Williamson (Author) (born 1942), Australian playwright and screenwriter
- David Williamson (magician) (born 1961), American magician
- David P. Williamson (* 1967), American mathematician and computer scientist