Peter Victor Danckwerts, GC, MBE, FRS (14 October 1916 – 25 October 1984) was a chemical engineer who pioneered the concept of the residence time distribution. In 1940, during the Second World War, he was awarded the George Cross for his work in defusing Parachute mines. He later became Shell Professor of Chemical Engineering at the University of Cambridge from 1959 to 1977 and a Fellow of Pembroke College, Cambridge.