Castelão

Castelao may refer to:


 * People
 * Alfonso Daniel Rodríguez Castelao, Galician politician, writer, painter and doctor
 * Ofelia Rey Castelao (b. 1956), Galician historian, writer, and university professor


 * Association football stadiums nicknamed Castelão:
 * Castelão (Maranhão) (Estádio Governador João Castelo), located in São Luís, Maranhão, Brazil
 * Castelão (Ceará) (Estádio Plácido Aderaldo Castelo), located in Fortaleza, Ceará, Brazil


 * Other
 * Castelão (grape), a Portuguese wine grape grown in the Bairrada DOC and other regions.