Patricia Kessler Poppe (born 1969) is an American businesswoman and business executive. Poppe is the first female executive to serve as the CEO of one Fortune 500 and become CEO of another. She was president and CEO of CMS Energy from July 2016 to December 2020. In November 2020, it was announced that she would be leaving CMS Energy and joining PG&E as CEO starting January 4, 2021.