If an American gives birth to a child in Brazil does she become citizen of Brazil?

Yes, a child born in Brazil to an American parent is automatically considered a Brazilian citizen due to the principle of jus soli, or birthright citizenship. Brazil follows the principle of jus soli, which grants citizenship to any individual born within the country's territory, regardless of the parents' nationality. Therefore, even though the mother is an American citizen, the child will acquire Brazilian citizenship by birth.