David Allen Smalley was a United States district judge of the United States District Court for the District of Vermont.

The United States District Court for the District of Vermont is the federal district court whose jurisdiction is the federal district of Vermont. The court has locations in Brattleboro, Burlington, and Rutland. The court was created by a March 2, 1791 amendment to the Judiciary Act of 1789 and assigned to the eastern circuit. Under the Midnight Judges Act, the Circuits were reorganized and this court was assigned to the United States Court of Appeals for the Second Circuit where it has remained since. Originally created with one judgeship, in 1966 a second judgeship was added.