Steven Cundiff is an American experimental physicist and the Harrison M. Randall collegiate professor of physics at the University of Michigan. His research interests include the production and manipulation of ultrafast pulses, in particular for applications in studying light-matter interactions. Cundiff is a Fellow of American Physical Society, the Optical Society of America, and the Institute of Electrical and Electronics Engineers. He is the co-author of the standard reference for frequency combs titled Femtosecond Optical Frequency Comb: Principle, Operation and Applications.