Sir David Klenerman FRS FMedSci (born 1959) is a British biophysical chemist and a professor of biophysical chemistry at the Department of Chemistry at the University of Cambridge and a Fellow of Christ's College, Cambridge. He is best known for his contribution in the field of next-generation sequencing of DNA (that subsequently resulted in Solexa, a high-speed DNA sequencing company that he co-founded), nanopipette-based scanning ion-conductance microscopy, and super-resolution microscopy.