David Bardens (born 27 April 1984 in Homburg, Saarland) is a German physician whose case was reported internationally in Spring 2015, after the district court of Ravensburg had ruled that he should get the €100,000 prize money, the pseudo-biologist Stefan Lanka had promised to anyone who could provide information about the size of measles virus.
This award was however overturned by the Higher Regional Court (Oberlandesgericht) Stuttgart in 2016 as Bardens submitted several publications instead of just one as requested by Lanka.