Robert Wodrow Archbald (September 10, 1848 – August 19, 1926), frequently known as R. W. Archbald, was a United States circuit judge of the United States Commerce Court, the United States Court of Appeals for the Third Circuit and the United States Circuit Courts for the Third Circuit and previously was a United States district judge of the United States District Court for the Middle District of Pennsylvania. He was the ninth federal official on whom Articles of Impeachment were served, and only the third to be convicted and removed from office.