Julio F. Navarro (b. October 12, 1962, in Santiago del Estero, Argentina) is a professor of Astronomy (Ph.D. Universidad Nacional de Córdoba, Argentina) at the department of Physics and Astronomy in the University of Victoria. Dr. Navarro's research is mainly focused on the formation and evolution of galaxies and galaxy clusters and the structure and evolution of their dark matter component. He is famous for his theoretical studies of dark matter halos accompanied by massive N-body simulations. Julio F. Navarro along with Carlos Frenk and Simon White have formulated a density profile for dark matter halos named the NFW profile after them.