Kociewie is an ethnocultural region in the eastern part of Tuchola Forest, in northern Poland, Pomerania, south of Gdańsk. Its cultural capital is Starogard Gdański, and the biggest town is Tczew. The region has about 250,000 inhabitants. It has well-developed industry and agriculture.
The Kociewiacy are a small Polish ethnographical group. Most of the Kociewiacy are Roman Catholics. They live next to a far more prominent ethnic group in the area, the Kashubians. According to the 2011 census, there were c. 3,000 individuals who declared as "Kociewiacy".
Kocievian dialect, unlike Kashubian, is mostly intelligible with mainstream Polish language. Despite geographic proximity, these two dialects are very dissimilar, with Kocievian being much closer to Kuyavian, to the point of some scholars calling it a variant of that dialect.