Benjamin Henry Boneval Latrobe (May 1, 1764 – September 3, 1820) was a British subject and neoclassical architect. In his thirties, he emigrated to the new United States and designed the United States Capitol, on "Capitol Hill" in Washington, D.C., after which he performed later work on the Old Baltimore Cathedral/The Baltimore Basilica, (later renamed the Basilica of the National Shrine of the Assumption of the Blessed Virgin Mary).