William Johnson FRS[2] FREng (20 April 1922 – 13 June 2010) was a British engineer, educator, research scientist and Professor of Mechanics at the University of Cambridge.

His nomination reads: Distinguished for basic studies of the mechanics of metal forming and for pioneering investigations of novel technological processes.

He has made substantial contributions to the fundamental understanding of metal flow in extrusion, forging, deep-drawing, blanking, and machining processes.

His latest ventures are in speculative fields such as ring-rolling, rotary forging, bubble-casting, electro-magnetic and magneto-hydraulic shaping, and energy-absorption devices.

Johnson is the founder-editor of the International Journal of Mechanical Sciences, and has served as a consultant to many companies and government bodies.