Morgan Uceny (born March 10, 1985) is a retired American track and field athlete who specialized in middle distance running. Uceny won three national championships and was the 2011 IAAF Diamond League Champion at 1500 meters. She ended 2011 as the first American since 1985 to be ranked number one in the world in the 1500 m by Track & Field News. She represented her country at the 2012 Summer Olympics, 2007 Pan American Games and the 2011 World Championships in Athletics. Her personal records are 1:58.37 minutes for the 800 meters and 4:00.06 minutes for the 1500 meters.