Hunsrückisch is a German dialect spoken in the Hunsrück region of Germany (Rhineland-Palatinate). This mountainous region of Germany has long been an exporter of emigrants to Brazil, United States, Canada, Australia and other parts of the world.^{[citation needed]}

Hunsrückisch was spoken in Edgar Reitz's acclaimed television series Heimat.

Whilst the Hunsrück region of Germany is well-defined, the distribution of Hunsrückisch itself is less so. On the one hand, the dialect extends beyond the Hunsrück area, but there are clear linguistic differences between the Hunsrückisch spoken in one locality and in another, and no uniform form of the dialect exists. That is made more difficult by the lack of written resources for the dialect. Since the 1990s, there has been an ongoing attempt to more scientifically document local dialects in the Mittelrheinischer Sprachatlas. The Rheinisches Wörterbuch entries of 1928–1971 have also been fully digitalised since then by the University of Trier.

As with almost all German dialects, the Hunsrückische dialect can be subdivided into many small local dialects, which each village having its own strand. The small-scale divisions of this linguistic area stem from how kingdoms in the Hunsrück area were often divided with borders that even cut through villages. The religious divisions in the predominantly protestant or catholic areas also contributed towards this linguistic separation.

A considerable and accelerated reversal of the active use of the Hunsrückisch dialect has also been noted. Younger generations sometimes no longer speak dialect and rarely understand unique words pertinent to that dialect. Societies dedicated to preserving local culture and history, as well as individuals themselves, have been trying to stem this trend via modern communication and documentation methods.

There is a variation of the dialect in southern Brazil and in the southeastern state of Espírito Santo (municipalities of Marechal Floriano, Domingos Martins and Santa Leopoldina), named Hunsrik.

Throughout its almost 200-year history in southern Brazil and Espírito Santo, Hunsrückisch has been greatly influenced by other German dialects such as East Pomeranian, Swabian, and Austro-Bavarian; by other immigrant languages; and by Portuguese. Through Brazilian Portuguese, it has also incorporated Amerindian terminology, notably for fauna, flora and toponyms.

Brazilian Hunsrik is spoken in the states of Rio Grande do Sul, the nearby state of Santa Catarina, in other parts of southern Brazil like Paraná, and in the Southeast region such as Espírito Santo and São Paulo. It's the second most spoken language in Brazil, after Portuguese.