Spain is nowadays a monarchy, i.e. a kingdom (form of government), with a king as its head of state.
This category includes all the claimants to the Spanish throne, as rival claimants to the ruling monarch, i.c. king, and claimants to historical thrones, who were all incorporated into modern Spain.
- claimants of the throne of the actual kingdom of Spain upon the death of king Charles II of Spain (from 1700 until today)
- claimants of historical thrones on Spanish territory:
- pretenders to the throne of the historical kingdom of Aragon
- pretenders to the throne of the historical kingdom of Castille
- pretenders to the throne of the historical kingdom of Leon
- pretenders to the throne of the historical kingdom of Navarre