who is the supreme justice of the supreme court
Chief Justice of the United States
short
John Roberts
Chief Justice of the United States Incumbent John Roberts since September 29 , 2005 Style The Honorable ( formal ) Mr. Chief Justice ( informal ) Your Honor ( when addressed directly in court ) Appointer Presidential nomination with Senate confirmation Term length Life tenure Constituting instrument U.S. Constitution Inaugural holder John Jay as Chief Justice of the Supreme Court September 26 , 1789 Formation March 4 , 1789