Prince Luiz of Orleans-Braganza (born 6 June 1938) is the head of the Vassouras branch of the House of Orléans-Braganza and a claimant to the defunct Brazilian throne.
The Vassouras branch claims the throne in opposition to the Petrópolis branch of the Orléans-Braganzas, headed by Prince Pedro Carlos of Orléans-Braganza.
Though both Prince Luiz and Prince Pedro Carlos are great-great-grandchildren of Emperor Pedro II of Brazil, of the House of Braganza, they dispute leadership over the Brazilian Imperial Family due to a dynastic dispute concerning their fathers, who were cousins.
Prince Luiz actively claims the throne and participates in matters concerning Brazil's imperial past.