Tabatinga is a municipality located in the Três Fronteiras area of western Amazonas, Brazil. Originally established as Forte de São Francisco Xavier de Tabatinga, it serves as a significant point within the regional geography of the Brazilian state.
The city covers an area of 3,225 km2 and had a recorded population of 67,182 in 2020. It is situated in a region characterized by its proximity to international borders, defining its position within the Três Fronteiras territory.