David Emil Reich (born July 14, 1974) is a geneticist known for his research into the population genetics of ancient humans, including their migrations and the mixing of populations, discovered by analysis of genome-wide patterns of mutations.
He is professor in the department of genetics at the Harvard Medical School, and an associate of the Broad Institute.
Reich was highlighted as one of Nature's 10 for his contributions to science in 2015.
He received the Dan David Prize in May 2017, the NAS Award in Molecular Biology in April 2019 and the Darwin-Wallace Medal in June 2019.