Xuxa e o Tesouro da Cidade Perdida (transl. Xuxa and the Lost City Treasure) is a 2004 Brazilian fantasy adventure children's film, written by Flávio de Souza, directed by Moacyr Góes, produced by Diler Trindade and distributed by Warner Bros. Pictures and Globo Filmes. Starring Xuxa Meneghel, Marcos Pasquim, Juliana Knust, Paulo Vilhena, Sérgio Hondjakoff, Natália Lage, Zezé Motta, Bruna Marquezine, Milton Gonçalves and Sérgio Malheiros. Xuxa lives a biologist in a town near the Amazon Rainforest. Alongside the brothers Riacho and Manhã, she seeks the lost city of Igdrasil, which according to legend was founded by descendants of Vikings who crossed the Atlantic Ocean and ventured down the Amazon River.

Director Góes developed the script based on influences from films such as Indiana Jones Raiders of the Lost Ark, other influences include Allan Quatermain's Lost City of Golds and William Shakespeare's Midsummer Night's Dream. In addition to containing references of Inca and Scandinavian mythology, Brazilian folklore (in the figure of Curupira) and patriotic-environmental pedagogy, used in the territorial defense of the Amazon.

The film debuted on December 17, 2004, in 320 rooms in Brazil. It performed well at the box office, grossing R$7 million reais with more than 1,331,652 million box offices. Tesouro da Cidade Perdida received widespread criticism from critics and audiences.