Juan del Castillo (1590?–1657?), Spanish painter
Juan del Castillo may also refer to:
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Juan del Castillo (painter) (1590-1657), Spanish Baroque painter.
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Juan del Castillo (bishop) (?–1593), Spanish Roman Catholic bishop
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Juan de Castillo (Jesuit) (1595–1628), Spanish Jesuit saint killed in Paraguay
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Juan del Castillo (footballer) (1889–1977), Spanish footballer and president of Real Betis
{{DEFAULTSORT:del Castillo, Juan