Elizabeth McIngvale (born 1987) is the founder of Peace of Mind, a non-profit organization for people with obsessive-compulsive disorder (OCD). She herself was diagnosed with OCD at the age of 12, and at age 18 became the national spokesperson for the International OCD Foundation. She lives in Houston, Texas and is the daughter of area businessman Jim McIngvale and his wife Linda.
At one point doctors believed McIngvale's OCD was too severe to be treatable. Her rituals included having to repeat menial fulling tasks 42 times, an obsession with religious symbolism, and washing her hands over 100 times a day.
She completed her Bachelor’s degree in 2009 and Master's in 2010 from Loyola University Chicago. She earned her PhD from the University of Houston's Graduate College of Social Work in 2014. She is now an assistant professor at Baylor University in the Social Work department.