Geraldo José Rodrigues Alckmin Filho is a Brazilian physician and politician who has served as the 26th vice president of Brazil since 1 January 2023. He previously served as the Governor of São Paulo in nonconsecutive terms from 2001 to 2006 and from 2011 to 2018, the longest since democratization. He was the candidate of the Brazilian Social Democracy Party for president, losing in 2006 and 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.