Office-holders
All Presidents of Brazil bore the title President of the Republic. That title has been used by all the Constitutions of Brazil since the proclamation of the Republic to refer to the head of the Executive Branch.
However, from the proclamation of the Republic in 1889 until 1967 the country was officially styled Republic of the United States of Brazil, and thus the full title of the Presidents from Deodoro da Fonseca to Humberto Castello Branco was President of the Republic of the United States of Brazil. On March 15, 1967, the country's official name was changed to Federative Republic of Brazil. On that same date, Arthur da Costa e Silva was sworn in as President. Since Costa e Silva, therefore, all Presidents of Brazil bear the full title of President of the Federative Republic of Brazil.
Read more about this topic: President Of Brazil