Susan Carol Schwab (born March 23, 1955) is an American politician, who served under President George W. Bush as United States Trade Representative from June, 2006 to January, 2009. She is not related to Charles R. Schwab Sr., founder of the Charles Schwab Corporation, despite coincidentally sharing the same last name; she is also not to be confused with his first wife Susan (Cotter) Schwab.