Stanley Norman Cohen (born February 17, 1935 in Perth Amboy, New Jersey, United States) is an American geneticist and the Kwoh-Ting Li Professor in the Stanford University School of Medicine.
Stanley Cohen and Herbert Boyer were the first scientists to transplant genes from one living organism to another, a fundamental discovery for genetical engineering.
Thousands of products have been developed on the basis of their work, including human growth hormone and hepatitis B vaccine.
According to microbiologist Hugh McDevitt, "Cohen's DNA cloning technology has helped biologists in virtually every field".
Without it, "the face of biomedicine and biotechnology would look totally different."