Angelo Moniz da Silva Ferraz, the Baron of Uruguaiana (3 November 1812 - 18 January 1867)[2] was a Brazilian magistrate and politician.

[3] He graduated from the Faculty of Law at Olinda in 1834,[2] and was soon thereafter appointed prosecutor in Salvador, later becoming a judge in Jacobina.

While Minister of War, he was adjutant to Emperor Pedro II during the surrender of Paraguayan Colonel Estigarribia, in the city of Uruguaiana, on September 18, 1865 during the Paraguayan War.

In commemoration of this episode, he was awarded the title of Baron of Uruguaiana in 1866.

His management of the national finances was characterized by the creation of the Department of Agriculture, Commerce and Public Works; the organization of savings banks; regulation of issuing banks and money supply;[4] introduction of accountability of those responsible to the National Treasury; and compulsory civil service examinations.