Dawn Harper-Nelson is an American, retired track and field athlete who specializes in the 100-meter hurdles. She was the gold medalist in the event at the 2008 Beijing Olympic Games and the silver medalist in the 2012 London Olympic Games and the 2017 World Championships. She was trained by Bob Kersee, husband of Jackie Joyner-Kersee. She is a member of the 2022 class of the UCLA Athletics Hall of Fame.