Lacy Barnes (born December 23, 1964, in Ridgecrest, California) is a former track and field athlete. She was the United States women's discus throw track and field champion in 1988 and 1991 and the top U.S. finisher in the 1996 Atlanta Olympics. Barnes studied at California State University, Fresno, competing for the track team. Barnes earned a Ph.D. in psychology from Claremont Graduate University in 2010. In 2000, she was inducted into the . She resides in Fresno County and is a psychology professor at Madera Community College in Madera, California.