John of Portugal (Portuguese: João) is the name of several Portuguese kings and other members of the Portuguese Royal Family:

Infante João (1160–1169), son of Afonso I of Portugal;

João, Prince of Brazil (1688–1688), son of Peter II of Portugal;

Infante João (1326–1327), son of Afonso IV of Portugal;

Infante João (1429–1433), son of Edward of Portugal;

João, Prince of Portugal (1537–1554), son of John III;

John I of Portugal (1357-1433)

John II of Portugal (1455-1495)

John III of Portugal (1502-1557)

John IV of Portugal (1603-1656)

John V of Portugal (1689-1750)

John VI of Portugal (1769-1826)

Infante João, Duke of Valencia de Campos (1349–1387), son of Peter I of Portugal and Inês de Castro;

João, Prince of Portugal (1451–1451), son of Afonso V of Portugal;

Infante João Francisco (1763–1763), son of Maria I and Peter III of Portugal;

João Carlos, Prince of Beira (1821–1822), son of Peter IV of Portugal (Peter I of Brazil);

Infante João, Duke of Beja (1842–1861), son of Maria II and Ferdinand II of Portugal;