Julian Davies is a bacteriologist renowned for his research concerning the mechanisms of bacterial resistance to antibiotics, and on the use of antibiotics as research tools.

Davies was born in Casrell Nedd, Morgannwg, Cymru, Wales. He received his education in Britain. His university education was at the University of Nottingham, where he received a B.Sc. (Chemistry, Physics, Math) in 1953 and a Ph.D. (Organic Chemistry) in 1956. From 1959 to 1962, he was Lecturer at the University of Manchester. Davies then moved to the United States where he was an Associate at the Harvard Medical School from 1962 until 1967. From 1965 to 1967, he was also a Visiting Professor at the Institute Pasteur in Paris. In 1967, Davies became an Associate Professor in the Department of Biochemistry at the University of Wisconsin. He attained the rank of Professor in 1970 and remained at Wisconsin until 1980. In that year, Davies took up the post of Research...