Charles James Folger was an American lawyer and politician. A member of the Republican Party, he was a State Senator in New York from 1862 to 1869 and served as the 34th U.S. Secretary of the Treasury from November 14th, 1881 until his death in 1884. Folger was the Republican nominee for Governor of New York in 1882, but was defeated by the Democratic Party's nominee, future President Grover Cleveland.

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.