Guarani das Missões is a municipality in the state of Rio Grande do Sul, Brazil.
Guarani das Missões calls itself the Polish Capital of Rio Grande do Sul because it was settled primarily by Polish immigrants, starting over one century ago. The Polish language is still spoken and is maintained as a unique regionalism, alongside the national language, Portuguese.
Other minority languages spoken in neighboring municipalities are Riograndenser Hunsrückisch German, and Pomeranian.
Coordinates: 28°08′S 54°34′W / 28.133°S 54.567°W