John of Portugal () is the name of several Portuguese kings and other members of the Portuguese Royal Family: Kings John I of Portugal (13571433) John II of Portugal (14551495) John III of Portugal (15021557) John IV of Portugal (16041656) John V of Portugal (16891750) John VI of Portugal (17671826) Infantes John, Duke of Valencia de Campos (c.1349c.1396), son of Peter I of Portugal and Inês de Castro John, Constable of Portugal (14001442), son of John I of Portugal John of Coimbra, Prince of Antioch (14311457), son of Infante Pedro, Duke of Coimbra John, Hereditary Prince of Portugal (1451), son of Afonso V of Portugal João Manuel, Hereditary Prince of Portugal (15371554), son of John III of Portugal João, Prince of Brazil (1688), son of Peter II of Portugal Infante João Francisco of Portugal (1763), son of Maria I of Portugal and Peter III of Portugal João Carlos, Prince of Beira (18211822), son of Peter IV of Portugal (Peter I of Brazil) Infante João, Duke of Beja (18421861), son of Maria II and Ferdinand II of Portugal Others João de Portugal (Dominican) (active 1626), Portuguese Dominican friar in the Roman Catholic Diocese of Viseu