William Hughes Miller (born March 16, 1941, Kosciusko, Mississippi) is an American professor at the University of California, Berkeley and a leading researcher in the field of theoretical chemistry.

[3] Miller is known for his development of semiclassical methods for treating chemical dynamics.

[6] Miller was elected a Foreign Member of the Royal Society (ForMemRS) of London in 2015.

His nomination reads: Professor Miller's papers over the last 45 years have essentially defined the field of theoretical chemical dynamics.

These fundamental developments are at the root of the agreement between theory and experiment that we are now accustomed to seeing in chemical reaction dynamics, and the basis of essentially all modern theoretical research in the area.