| John | |
|---|---|
| Prince of Asturias, Prince of Girona, Duke of Montblanc, Count of Cervera, and Lord of Balaguer | |
 | |
| Born | 30 June 1478 Seville, Spain |
| Died | 4 October 1497 (aged 19) Salamanca, Spain |
| Burial | Real Monasterio de Santo Tomás in Ávila |
| Spouse | |
| House | Trastámara |
| Father | Ferdinand II of Aragon |
| Mother | Isabella I of Castile |
John, Prince of Asturias and Girona (Spanish: Juan; 30 June 1478 – 4 October 1497) was the only son of King Ferdinand II of Aragon and Queen Isabella I of Castile, and heir apparent to both their thrones for nearly his entire life.