David Brookman Smith (born December 4, 1951), known professionally as D. Brooks Smith, is a Senior United States circuit judge of the United States Court of Appeals for the Third Circuit. He was previously Chief Judge of both the United States Court of Appeals for the Third Circuit and the United States District Court for the Western District of Pennsylvania, and is the only judge in the history of the Third Circuit to have served as both a chief district judge and chief of the Court of Appeals. Since January 2022, Smith has served as Penn State Law's new jurist in residence.