Aviv Regev (born July 11, 1971) is a computational biologist and systems biologist and Executive Vice President and Head of Genentech Research and Early Development in Genentech/Roche. She is a core member (on leave) at the Broad Institute of MIT and Harvard and professor (on leave) at the Department of Biology of the Massachusetts Institute of Technology. Regev is a pioneer of single cell genomics and of computational and systems biology of gene regulatory circuits. She founded and leads the Human Cell Atlas project, together with Sarah Teichmann.