Tuchola Forest dialect

The Tuchola Forest dialect (Polish: gwara Borów Tucholskich) belongs to the Greater Poland dialect group and is located in the northern part of Poland. It borders the Krajna dialect to the south, the Chełmno-Dobrzyń dialect to the southeast, the Kociewie dialect to the east, and the Kashubian language to the north.

Once called the Tuchola dialect by Nitsch, now Bory is more common, as it is more general and does not refer to just the city. It is a transitional dialect with Kashubian. The line between Bory and Krajna is not clear. Bory does not have any features that are not shared by neighboring dialects, and as such, it has been stated that it's not a dialectal unit the same as others, but rather a transitionary dialect between many others.