Margaret I. Cuomo is an American radiologist, author, philanthropist, advocate, and blogger on health issues, especially those related to cancer prevention. She is the eldest daughter of former New York Governor Mario Cuomo and former New York First Lady Matilda Cuomo, and sister to Governor Andrew Cuomo and CNN’s Chris Cuomo. She resides in New York. She is a board member of LessCancer — a 501(c)(3) not-for-profit organization.