Ferrante d'Este (19 September 1477, Castel Capuano, Naples – February 1540, Ferrara) was a Ferrarese nobleman and condottiero. He was the son of Ercole I d'Este and Eleonora d'Aragona - he was named after his mother's father Ferdinand I of Naples. His five siblings were Alfonso I d'Este, cardinal Ippolito d'Este, Isabella d'Este, wife of Francesco II Gonzaga, Beatrice d'Este, and Sigismondo d'Este. His two illegitimate half-siblings were Giulio and Lucrezia d'Este.