Castelao may refer to:
;People
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Alfonso Daniel Rodríguez Castelao
Alfonso Daniel Manuel Rodríguez Castelao (30 January 1886 – 7 January 1950), commonly known as Castelao, was a Galician politician, writer, painter and doctor. He is one of the fathers of Galician nationalism, promoting Galician ident ...
, Galician politician, writer, painter and doctor
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Ofelia Rey Castelao
Ofelia Rey Castelao (born 1956) is a Galician historian, writer, and university professor. Focusing her research on women's history, she studies female migration and the insertion of Galician women in the literate culture. Rey Castelao was awar ...
(b. 1956), Galician historian, writer, and university professor
;Association football stadiums nicknamed Castelão:
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Castelão (Maranhão)
The Estádio Governador João Castelo, also known as the Castelão, is a multi-purpose stadium inaugurated on March 9, 1975, in São Luís, Maranhão, São Luís, Maranhão, Brazil, with a maximum capacity of 40,149 people in a three-tier configu ...
(Estádio Governador João Castelo), located in São Luís, Maranhão, Brazil
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Castelão (Ceará)
Estádio Governador Plácido Castelo, also known as the Castelão (, Portuguese for "Big Castle") or Gigante da Boa Vista, is a football stadium that was inaugurated on November 11, 1973, in Fortaleza, Ceará, Brazil. With a maximum capacity of ...
(Estádio Plácido Aderaldo Castelo), located in Fortaleza, Ceará, Brazil
;Other
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Castelão (grape)
Castelão, in Portugal also known as Periquita and João de Santarém, is a red wine grape varieties, grape found primarily in the south coastal regions but is grown all over Portugal (wine), Portugal and is sometimes used in Port wine production ...
, a Portuguese wine grape grown in the Bairrada DOC and other regions.
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