Nicole King (born 1970) is an American biologist and faculty member at the University of California, Berkeley in molecular and cell biology and integrative biology. She was awarded a MacArthur Fellowship in 2005. She has been an investigator with the Howard Hughes Medical Institute (HHMI) since 2013. King studies the evolution of multicellularity and choanoflagellates. The goal of her work is to reconstruct how multicellular animals evolved from single-cell organisms.