Eric R. Weeks (born 1970 in Downers Grove, Illinois) is an American physicist. He completed his B.Sc. at the University of Illinois at Urbana–Champaign in 1992. He obtained a Ph.D. in physics from the University of Texas at Austin in 1997, working under Harry Swinney, and later completed post-doctoral research with David Weitz and Arjun Yodh at Harvard University and the University of Pennsylvania.