Dennis Frederick Evans (7 March 1928 – 6 November 1990) was a British inorganic chemist who gained fame for inventing methods for determination of the magnetism of chemical compounds.
After his PhD at Oxford, he conducted postdoctoral studies at the University of Chicago under Robert S.
Mulliken.
He joined the chemistry faculty at Imperial College, rising to the rank of Professor.
He collaborated often with Geoffrey Wilkinson, but conducted independent studies on magnetism.
He was elected a fellow of the Royal Society in 1981.