Orlando (1914–2002) and his brothers Cláudio (1916–1998) and Leonardo Villas-Bôas (1918–1961) were Brazilian brothers who worked in indigenous activism. In 1961 they succeeded in getting the entire upper Xingu legally protected, making it the first massive indigenous area in all South America, and the prototype for dozens of similar reserves all over the continent.

The Xingu Indigenous Park is an indigenous territory of Brazil, first created in 1961 as a national park in the state of Mato Grosso, Brazil. Its official purposes are to protect the environment and the several nations of Xingu Indigenous peoples in the area.