Alida Ferry Rockefeller (born 1948) is an American philanthropist. She is the youngest daughter of John Davison Rockefeller III (1906–1978) and Blanchette Ferry Hooker (1909–1992), and a fourth-generation member of the Rockefeller family. Her brother is former Senator John Davison "Jay" Rockefeller IV (born 1937). According to an account in the New York Times, Alida was only five years old when her father began to teach her about philanthropy.