The Lach dialects are a group of dialect

Dialect

The term dialect is used in two distinct ways, even by linguists. One usage refers to a variety of a language that is a characteristic of a particular group of the language's speakers. The term is applied most often to regional speech patterns, but a dialect may also be defined by other factors,...

s of Silesian language. They represent a hybrid or mix of the West Slavic languages

West Slavic languages

The West Slavic languages are a subdivision of the Slavic language group that includes Czech, Polish, Slovak, Kashubian and Sorbian.Classification:* Indo-European** Balto-Slavic*** Slavic**** West Slavic***** Czech-Slovak languages****** Czech...

.

The Lach dialects are spoken in parts of Czech Silesia

Czech Silesia

Czech Silesia is an unofficial name of one of the three Czech lands and a section of the Silesian historical region. It is located in the north-east of the Czech Republic, predominantly in the Moravian-Silesian Region, with a section in the northern Olomouc Region...

, the Hlučín region

Hlucín Region

Hlučín Area is a part of Czech Silesia in the Moravian-Silesian Region of the Czech Republic, named after the largest town Hlučín. Its area is , in 2001 was inhabited by 73,914 citizens, thus the population density was 233 per km².-History:...

, and northeastern Moravia

Moravia

Moravia is a historical region in Central Europe in the east of the Czech Republic, and one of the former Czech lands, together with Bohemia and Silesia. It takes its name from the Morava River which rises in the northwest of the region...

, as well as in some adjacent villages in Poland

Poland

Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

. Most Czech researchers consider Lach a dialect of Czech, whereas Polish dialectologists tend to ascribe Polish origins to Lach.

The poet Óndra Łysohorsky is probably the best-known writer in a Lach dialect.