Antônio Hamilton Martins Mourão is a Brazilian politician and retired military officer who served as the 25th vice president of Brazil from 2019 to 2022.

The vice president of Brazil, officially the vice president of the Federative Republic of Brazil, or simply the vice president of the republic is the second-highest ranking government official in the executive branch of the Government of Brazil, preceded only by the president. The vice president's primary role is to replace the president in the event of their death, resignation, or impeachment, and to temporarily take over the presidential powers and duties while the president is abroad, or otherwise temporarily unable to carry out their duties. The vice president is elected jointly with the president as their running mate.