As of January 1, 2023, Luiz Inácio Lula da Silva (commonly known as Lula) is the President of Brazil, serving his third non-consecutive term (previously 2003–2010).
Note: My knowledge cutoff is April 2023. For the absolute latest, check official Brazilian government sources (planalto.gov.br) or reputable news.
Brazil is a federal presidential republic; the President is both head of state and head of government, elected by popular vote (two-round system).