The Palácio Quitandinha is a historic former luxury resort hotel in Petrópolis, State of Rio de Janeiro, Brazil.

In 1947, the Palácio Quitandinha was the site of the Rio Treaty, attended by United States President Harry Truman.

Designed by Italian architect Luis Fossatti,[1] and constructed between 1941 and 1946 by Brazilian entrepreneur Joaquim Rolla,[2] the Palácio Quitandinha is one of the most impressive architectural monuments in Petrópolis.

The scenic artificial lake in front of the hotel, loosely resembling the shape of Brazil, was built to provide a source of water in the event of a fire.

Notable guests who stayed at the hotel included Errol Flynn, Orson Welles, Lana Turner, Henry Fonda, Maurice Chevalier, Greta Garbo, Carmen Miranda, Walt Disney, Bing Crosby, politicians like Eva Perón and president Getúlio Vargas of Brazil and king Carol II of Romania.