Murray Sargent III (18 August 1941, New York City) is an American physicist who focuses on laser physics and software engineering.
Sargent studied at Yale University. From 1967 to 1969 he was at the Bell Laboratories as a postdoctoral fellow. Since 1969 he has been at the University of Arizona, first in 1969 as an Assistant Professor in the computer science faculty, then in 1972 as an Associate Professor, and from 1977 as a Professor of optics. In 2002 he became Professor Emeritus.