Santa Maria do Boiaçu is a village in the Brazilian municipality of Rorainópolis, in the state of Roraima.

It is located on the Branco River,[2] and inside the Baixo Rio Branco-Jauaperi Extractive Reserve.

[3] Santa Maria do Boiaçu is an isolated village along the Branco River.

[4] In 2018, the Baixo Rio Branco-Jauaperi Extractive Reserve was created which aims to protect the area while allowing for sustainable economic activities for the communities along the river.

[7] The 2019 cutbacks and restructuring of FUNAI, the organisation in charge of the indigenous territories, by Jair Bolsonaro[9] has resulted in Yanomami Amerindians leaving their territory and building camps in the vicinity of the village.