Gary J. Pielak (born July 17, 1955) is an American biological chemist who is known for developing quantitative techniques for measuring protein structure, stability, diffusion, and concentration in living cells, and under crowded conditions.
Pielak is the Kenan Distinguished Professor[1] of Chemistry, Biochemistry and Biophysics at the University of North Carolina at Chapel Hill School of Medicine,[2] Lineberger Comprehensive Cancer Center,[3] and Department of Chemistry.[4] He is a Fellow of the Biophysical Society.[5][6]