Linda Birnbaum is an American toxicologist, microbiologist, and the former director of the National Institute for Environmental Health Sciences, as well as the National Toxicology Program. These positions she held from January 18, 2009, until October 3, 2019.
She also serves as an adjunct professor at the University of North Carolina at Chapel Hill School of Public Health, and a Scholar at Residence at Duke University & Yale University.