Roberta Brooke Astor (née Russell; March 30, 1902 – August 13, 2007) was an American philanthropist, socialite, and writer who was the chairwoman of the Vincent Astor Foundation, which had been established by her third husband, Vincent Astor, son of John Jacob Astor IV and great-great grandson of America's first multi-millionaire, John Jacob Astor. Brooke Astor was the author of two novels and two volumes of personal memoirs.