Timothy Franz "Tim" Geithner (; born August 18, 1961) is an American economic policy maker and central banker who served as the 75th United States Secretary of the Treasury, under President Barack Obama, from 2009 to 2013. He was previously the president of the Federal Reserve Bank of New York from 2003 to 2009. He now serves as president of Warburg Pincus, a Wall Street private equity firm.