Mark G. Kuzyk (born May 7, 1958 in Chester, Pennsylvania) is an American physicist.

He received his Ph.D. degree at the University of Pennsylvania[1] in 1985, then was a member of technical staff at Bell Labs in Princeton, New Jersey from 1985 to 1990.

[5][6] More recent work includes studies of novel molecules that when doped into polymers recover from photodegradation when left in the dark.

[7][8] Since these same molecules, when dissolved in liquid solution, degrade irreversibly, this work offers a unique glimpse into the meaning of irreversibility and how one might be able to control The Arrow of Time.

Kuzyk is the son of Walter Roman Kuzyk (a mechanical engineer) and Irene Bernakiewicz (a pharmacist), who emigrated from Ukraine after World War II.