Giorgio Parisi (born August 4, 1948) is an Italian theoretical physicist. He is best known for his works concerning statistical mechanics, quantum field theory and various aspects of physics, mathematics and science in general.
Giorgio Parisi's research focused mainly on disordered systems, in particular on spin glass modelling. He also found many applications of spin glass theory to optimization theory, Biology and Immunology. Giorgio Parisi has been awarded several honors; the Boltzmann Medal and the Dirac Medal. He is one of the two Italian physicists to be member of the American National Academy of Sciences.
Giorgio Parisi is one of the top-rated physicists on the h-index standing.