Luciana "Lucy" Fato (born 1966) is an American corporate attorney. She has been general counsel at AIG since October 2017. Prior to joining AIG, her positions included nine years as deputy general counsel at Marsh & McLennan Companies, and a year as general counsel at McGraw Hill Financial (now S&P Global) settling high-profile securities-ratings lawsuits against Standard & Poor's Ratings Services from the Department of Justice, the Securities and Exchange Commission, and numerous state attorneys general.