John Pendleton Kennedy (October 25, 1795 – August 18, 1870) was an American novelist and Whig politician who served as United States Secretary of the Navy from July 26, 1852 to March 4, 1853, during the administration of President Millard Fillmore, and as a U.S. Representative from the Maryland's 4th congressional district. He was the brother of U.S. Senator Anthony Kennedy.