Geraldo José Rodrigues Alckmin Filho is a Brazilian physician and politician who currently serves as 26th vice president of Brazil, a position he has held since 1 January 2023. He previously was the Governor of São Paulo for two nonconsecutive terms, the longest serving since democratization, 2001 to 2006 and 2011 to 2018.

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.