David Klein
David Klein or Dave Klein may refer to:
- David Klein (American artist), American artist
- David Klein (businessman), American inventor of the Jelly Belly brand jelly bean
- David Klein (chess player), Dutch chess grandmaster
- David Klein (cinematographer), American cinematographer
- David Klein (Constellation Brands), American businessman
- David Klein (economist), former governor of the Bank of Israel
- David Klein (footballer), French soccer player
- David Klein (mathematician), American professor of mathematics
- David Klein (ophthalmologist), Swiss ophthalmologist
- Dave Klein (musician), American producer, composer and musician
- Dave Klein (punk musician), American bass guitarist