Jean de Croÿ (14 November 1588—1640), count of Solre, baron of Molembaix and marquess of Renty, knight of the Golden Fleece, was a nobleman from the Low Countries who held high office under the Spanish Habsburgs.
Jean was born in 1588, the son of Philippe de Croÿ-Solre and Anne de Beaufort. After his mother's death, his father married Anne de Croÿ, widow of Emanuel Philibert de Lalaing.[1] In 1608 Jean married his step-sister Jeanne de Lalaing, Anne de Croÿ's daughter from her first marriage. In 1614 he became a knight of the Golden Fleece, and in 1616 chamberlain to Archduke Albert.[1]
In the years 1619—1636 he undertook diplomatic missions in Poland, Germany and France on behalf of Philip IV of Spain, and in 1622—23 was acting high bailiff and captain-general of the County of Hainaut.[1] In 1624 he was appointed captain of the royal guard in Spain, and a member of the Spanish council of state. In September 1627 he became a councillor on the Supreme Council of Flanders in Madrid. He died in Madrid in 1640.[1]