Luis Antonio Jaime of Spain (25 July 1727 – 7 August 1785), Infante of Spain, Cardinal Deacon of the titular church of Santa Maria della Scala in Rome, Archbishop of Toledo and Primate of Spain, 13th Count of Chinchón, Grandee of Spain First Class, known as the Cardinal Infante, was a son of Philip V, King of Spain and his second wife, Elisabeth Farnese.
He was 8 years old when he was made both a Bishop and a Cardinal.
He is listed in the Guinness Book of World Records as the youngest-ever cardinal.