Kurt Wüthrich (born 4 October 1938 in Aarberg, Canton of Bern) is a Swiss chemist/biophysicist and Nobel Chemistry laureate, known for developing nuclear magnetic resonance (NMR) methods for studying biological macromolecules.

[9][10] After his PhD, Wüthrich continued postdoctoral research with Fallab for a short time before leaving to work at the University of California, Berkeley for two years from 1965 with Robert E. Connick.

[8] During his graduate studies Wüthrich started out working with electron paramagnetic resonance spectroscopy, and the subject of his PhD thesis was "the catalytic activity of copper compounds in autoxidation reactions".

[11] During his time as a postdoc in Berkeley he began working with the newly developed and related technique of nuclear magnetic resonance spectroscopy to study the hydration of metal complexes.

After returning to Switzerland, Wüthrich collaborated with, among others, Nobel laureate Richard R. Ernst on developing the first two-dimensional NMR experiments, and established the nuclear Overhauser effect as a convenient way of measuring distances within proteins.