Timothy Geithner, American banker and politician, 75th United States Secretary of the Treasury

Timothy Franz Geithner is an American former central banker who served as the 75th United States secretary of the treasury under President Barack Obama from 2009 to 2013. He was the President of the Federal Reserve Bank of New York from 2003 to 2009, following service in the Clinton administration. Since March 2014, he has served as president and chairman of Warburg Pincus, a private equity firm headquartered in New York City.

The United States secretary of the treasury is the head of the United States Department of the Treasury, and is the chief financial officer of the federal government of the United States. The secretary of the treasury serves as the principal advisor to the president of the United States on all matters pertaining to economic and fiscal policy. The secretary is, by custom, a member of the president's cabinet and, by law, a member of the National Security Council, and fifth in the U.S. presidential line of succession.