A
- Casimiro de Abreu, poet (1989)
- Afonso I, Portuguese king (1940)
- Akihito, Japanese emperor (1967)
- Albert I, Belgian king (1920)
- Luís de Albuquerque de Melo Pereira e Cáceres, colonial governor (1952) article in Portuguese
- Aleijadinho, sculptor (sculpture shown 1964)
- Pedro Aleixo, politician (2001)
- José de Alencar, novelist (1965)
- Benedetto Aloisi Masella, Italian cardinal (1955)
- Rodrigues Alves (1917)
- Álvaro Alvim, radiologist (1963) article in Portuguese
- Jorge Amado, novelist (2002)
- Ubaldino do Amaral, statesman and abolitionist (1943) article in Portuguese
- Pedro Américo, painter (1943, 3 paintings shown 1993)
- José Américo de Almeida, writer (1987)
- Alceu Amoroso Lima, writer and critic (1993)
- José de Anchieta, missionary and writer (1934, 1941, 1980, 1997, 2007)
- Hans Christian Andersen Danish author (2005)
- Martim Francisco Ribeiro de Andrada, statesman (1945) article in Portuguese
- José Bonifácio de Andrada e Silva, statesman (1909, 1959, 1963, 1988, 2008)
- Mário de Andrade, poet (1993)
- Ivo Andrić, writer (2011)
- Anthony of Padua, Portuguese saint (1995)
- Osvaldo Aranha, statesman (1931, 1994)
- Fernando de Azevedo, writer and educator (1994) article in Portuguese
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