Who is U.S. Treasury Secratary?
United States Secretary of the Treasury
Acting Under Secretary for Terrorism and Financial Intelligence Adam J. Szubin served as Acting Secretary of the Treasury from January 20, 2017, until the confirmation of Steven Mnuchin which occurred February 13, 2017.
Department of the Treasury (Australia)
The Secretary to the Treasury is the public service head of the department. Below is the list of Secretaries.
In 2008, Treasurer Wayne Swan called Secretary to the Treasury Ken Henry an "independent economic regulator," similar to the Governor of the Reserve Bank.
When asked after the 2009 Budget about Treasury’s independence, Henry replied: 
The department is legally required to provide a Pre-election Economic and Fiscal Outlook containing updated reports on the economic and fiscal outlook shortly after the issuing of a writ for a general federal election.