Michael F. Crommie (born December 1961) is an American physicist, a professor of physics at the University of California, Berkeley.

[1] Crommie completed his undergraduate studies at the University of California, Los Angeles, earning a bachelor's degree in 1984.

He completed his doctoral studies under Alex Zettl at UC Berkeley, receiving a Ph.D. in 1991, and was a postdoctoral fellow at IBM under Don Eigler.

Crommie is known for demonstrating the quantum corral in 1993 with Lutz and Eigler by using an elliptical ring of cobalt atoms on a copper surface.

The ferromagnetic cobalt atoms reflected the surface electrons of the copper inside the ring into a wave pattern, as predicted by the theory of quantum mechanics.