Cornelia Bargmann (born 1961) is an American neurobiologist. She is known for her work on the behavior in the C. elegans, particularly olfaction in the worm. She has been elected to the National Academy of Sciences and is currently a Howard Hughes Medical Institute investigator at Rockefeller University.She receive Perl-UNC Prize in 2011 for Discover of Chemosensitive Circuits that Regulate Social Behaviors.