David R. Gius (born August 23, 1960) is an American physician-scientist the Zell Family Scholar Professor, Women's Cancer Research Program director, and Vice Chair of Translational Research at Northwestern University's Feinberg School of Medicine Department of Radiation Oncology and Pharmacology. His research focuses into the mechanistic connection between aging, cellular and/or mitochondrial metabolism, and carcinogenesis focusing on the Sirtuin gene family.