Denis Henshaw is emeritus professor of human radiation effects in the School of Chemistry at the University of Bristol, and Fellow Collegium Ramazzini.
Henshaw earned his B.Sc. in physics at Westfield College in London and his Ph.D. in astrophysics at the University of Nottingham. He joined the physics department at the University of Bristol as a postdoctoral researcher in 1973. He retired in 2011 and then served as scientific director of the charity Children with Cancer UK, which funds research into the causes, prevention and treatment of childhood cancer. Henshaw has published more than 260 scientific papers and served on a number of U.K. government committees. He was an associate editor of the International Journal of Radiation Biology for 10 years.