John Asen Zaccaria
| John Asen Zaccaria | |
|---|---|
| Prince of Achaea | |
| Reign | 1453 - 1454 |
| Predecessor | Centurione II Zaccaria |
| Prince of Achaea (titular) | |
| Reign | 1454–1469 |
| Died | 1469 Italy, Rome |
| Spouse | Magdalene Tocco |
| Issue | Antonio Zaccaria Angelo Zaccaria N.N. Zaccaria (daughter) |
| House | Zaccaria |
| Father | Centurione II Zaccaria |
| Mother | Palaiologina Asenina |
| Religion | Roman Catholic |
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John Asen Zaccaria or Asanes Zaccaria (Italian: Giovanni Asano Zaccaria; died 1469) was the firstborn son of Centurione II Zaccaria and a Byzantine princess from the Asen branch of the imperial Palaiologos family.
He was proclaimed Prince of Achaea during the great Morean revolt of 1453-54 and was recognized as such by the King of Naples, the Republics of Venice and Genoa, the Duke of Milan, and the Papacy. He was called Centurione III, following his paternal name, and is considered to be the last ruling Prince of Achaea having ruled in Morea, as well as the first titular Prince of Achaea in exile.