Infanta Isabel
- Elizabeth of Portugal
- Infanta Isabel Fernanda of Spain
- Infanta Isabel Maria of Braganza
- Infanta Isabel, Countess of Girgenti
- Isabel of Coimbra
- Isabella Clara Eugenia
- Isabella I of Castile
- Isabella II
- Isabella of Aragon (disambiguation)
- Isabella of Aragon, Countess of Urgell
- Isabella of Aragon, Queen of France
- Isabella of Aragon, Queen of Germany
- Isabella of Aragon, Queen of Portugal
- Isabella of Austria
- Isabella of Castile (disambiguation)
- Isabella of Castile, Duchess of York
- Isabella of Castile, Queen of Aragon
- Isabella of France
- Isabella of Navarre (disambiguation)
- Isabella of Navarre, Countess of Armagnac
- Isabella of Navarre, Viscountess of Rohan
- Isabella of Portugal
- Isabella of Portugal (disambiguation)
- Isabella of Portugal, Queen of Castile
- Princess Isabel Alfonsa of Bourbon-Two Sicilies
- Princess Isabel Maria of Braganza
- Princess Isabella of Parma