National road 19 () is part of the Polish national road network. The highway connects the north-eastern and southern regions of Poland, running from Kuà ºnica at the Belarus border to Barwinek at the Slovak border, traversing through the Podlaskie, Masovian, Lublin and Podkarpackie voivodeships. National road 19 is part of European highway E371. It is soon to be mostly accompanied by the new S19 Expressway
Before 1986, the section between Lublin and Rzeszów was road 26, and between Lublin and Radzyà  Podlaski was road 24. The remaining length of the route did not have the status of national road. After renumbering of roads, route 19 near Biaà Âystok led in the direction of Augustów, Suwaà Âki, to the border in Budzisko (today's road 8 E67). Later changed course from Biaà Âystok towards Sokóà Âka to the border in Kuà ºnica (former road 18). In 2014 road 19 was extended from Rzeszów to the Slovak border at Barwinek, replacing a section of road 9.