Nevada Stoody Hayes (21 October 1870 – 11 January 1941), sometimes called Nevada of Braganza, was an American socialite who became the wife of Infante Afonso of Braganza, Duke of Porto, whose nephew, Manuel II, was the last king of Portugal.
She was never accepted as a member of the exiled Portuguese royal family, yet by Portuguese law her marriage to Afonso was legal.