Early and Middle Bronze Age culture of eastern Poland, dating to the mid-2nd millennium BC. The type site near Lublin has a large number of houses with sunken foundations. Burial types are diverse, with inhumation and cremation, flat and barrow graves, occurring in varying combinations. It had ceramics and a flint industry, as well as imported bronze artifacts. The Trzciniec culture is closely related in material culture to the Komarow and Sosnicja groups further to the east, in the Ukraine.