Carl Edwin Wieman (born March 26 1951) is an American physicist of the University of Colorado at Boulder who (with Eric Allin Cornell), in 1995, produced a Bose-Einstein condensate. In a Time magazine article (April 10, 2000), Wieman was quoted, "We get to within a billionth of a degree of absolute zero."

Wieman was born in Corvallis, Oregon. In 2001, he won the Nobel Prize in Physics, along with Cornell and Wolfgang Ketterle.