Bílina  is a town in the Teplice District in the Ústí nad Labem Region of the Czech Republic.The historical town of Bílina lies in the valley of the river Bílina, between the tops of the Central Bohemian Massif and the range of the Ore mountains. It is situated between two bigger cities, Teplice and Most. In the south the mountain Bořeň, which resembles a lying lion, is looming.

City name originated from the adjective white (Bílí) and the term Bieliny was originally meant as a treeless place or white flowing river. The first written report about Bilina is from the year 993 and comes from the oldest Czech Cosmas in describing the war between Bretislaus I and the German Emperor Henry III.

Bílina  is known for its comforting and relaxing spas with source of strongly mineralized healing water Bílinská Kyselka. In 1702 princess Leonora of House of Lobkowicz got mineral spring cleaned and the very first spa guests began to come. In the end of 19th century the spa Biliner Sauerbrunn (means „Carbonated springs from Bílina“ in German) became a pride of the town. City Bílina also received a nickname „Vichy of Germany“. According to the digestive pastilles produced here was also a worldwide common name for the digestive regulators and laxatives „Seidlitz Powders.“ Lozenges are made from mineral water Sedlitz bitter water, which was also used in the local spa balneology.