Jens Frahm (born 29 March 1951 in Oldenburg, Germany) is a German biophysicist and physicochemist. He is Research Group Leader of the Biomedical NMR group at the Max Planck Institute (MPI) for Multidisciplinary Sciences in Göttingen, Germany (prior to January 1, 2022, at the former MPI for Biophysical Chemistry).