Phoebe Millicent Hearst Cooke (July 13, 1927 " November 18, 2012) was an American businesswoman and philanthropist. She served on the board of directors of the Hearst Corporation from 1962 to 1998. She was a granddaughter of William Randolph Hearst. Her twin brother was former Hearst Corporation chairman George Randolph Hearst, Jr., who died in June 2012.