Katie Rodan (nee Pregerson, born 1955–1956) is an American dermatologist, entrepreneur, and author. She is co-creator of the acne management system Proactiv, co-founder of anti-aging skincare company Rodan + Fields, and operates a private cosmetic dermatology practice in Oakland, California. In 2015, she was listed by Forbes as one of the 50 most successful self-made women in the United States. She is a billionaire.