Edith Ellen Humphrey (11 September 1875 – 25 February 1978) was a British inorganic chemist who carried out pioneering work in co-ordination chemistry at the University of Zurich under Alfred Werner. She is thought to be the first British woman to obtain a doctorate in chemistry and the first chemist to synthesize a chiral inorganic complex.
On the occasion of the 150th anniversary of the Royal Society of Chemistry (RSC), 8 April 1991, a sample of the original crystals synthesised by Humphrey for her PhD were sent to them by the Swiss Committee of Chemistry, together with a modern CD spectrum of a solution of one crystal. This box of crystals remains on display in the exhibition room of the RSC.