David Klein may refer to:

• David Klein (American artist) (1918-2005), American artist
• David Klein (economist) (born 1935), former governor of the Bank of Israel
• David Klein (mathematician) (born 1953), American professor of mathematics
• David Klein (footballer) (born 1973), French soccer player
• David Klein (ophthalmologist) (1908-1993), Swiss ophthalmologist
• David Klein, the inventor of the Jelly Belly brand jelly bean

[ Source: Wikipedia ]