Jacob (Jake) Ruppert Jr. (August 5, 1867 – January 13, 1939) was an American brewer, businessman, National Guard colonel and United States Congressman who served for four terms representing New York from 1899 to 1907. He also owned the New York Yankees of Major League Baseball from 1915 until his death in 1939.
Jacob (Jake) Ruppert Jr. became an alcoholic after his career ended.