Paul McEuen is an American physicist. He received his B.S. in engineering physics at the University of Oklahoma (1985), and his Ph.D. in applied physics at Yale University (1991). After postdoctoral work at MIT (1990-1991), he became an assistant professor at the University of California, Berkeley. He moved to Cornell University in 2001, where he is currently the Goldwin Smith Professor of Physics. He is one of the experts on the electrical property of carbon nanotubes and is a member of the National Academy of Sciences.