| Eleanor of Aragon | |
| Infanta of Aragon | |
| Succession: | Countess consort of Caltabellotta |
| Birth Date: | 1346 |
| Death Date: | 1405 |
| Death Place: | Giuliana, Sicily |
| Spouse: | Guglielmo Peralta |
| Issue: | Nicholas Peralta |
| House: | Barcelona |
| Father: | John, Duke of Randazzo |
| Mother: | Cesarea Lancia |
Eleanor of Aragon (1346–1405) was a countess of Caltabellotta (Sicilian: Cataviddotta), a comune (municipality) in the Province of Agrigento in the Italian region Sicily, located about 60km (40miles) south of Palermo and about 45km (28miles) northwest of Agrigento.
She was the daughter of infante John, fourth son of Frederick III of Aragon and Eleanor of Anjou. Eleanor of Aragon's mother Cesarea Lancia was eldest daughter of Peter, Count of Caltanissetta.She died in Giuliana, Sicily and the bust from her funerary monument is now in the Galleria regionale di Palazzo Abatellis in Palermo.