Bogatynia ([bɔɡaˈtɨɲa] ⓘ; German: Reichenau in Sachsen; Upper Sorbian: Bogatynja) is a town in Zgorzelec County, Lower Silesian Voivodeship, in south-western Poland.

[1] The settlement of Richnow (modern German: Reichenau, i.e. 'rich vale') in the historical region of Upper Lusatia was first mentioned in a 1262 deed, then a possession of Cistercian St. Marienthal Abbey near Ostritz.

[6] During the Seven Years' War, the occupying Austrian and Prussian armies imposed contributions on the inhabitants, confiscated food and even pillaged the village.

[6] As Saxony had sided with the French Empire during the Napoleonic Wars, it had to cede the northeastern part of Upper Lusatia to Prussia according to the Final Act of the 1815 Vienna Congress.

[6] Spared from damage during World War II,[6] with the implementation of the Oder-Neisse line according to the post-war Potsdam Agreement, it passed to Poland and was granted a city charter.

On August 8, 2010, the Miedzianka stream flooded the entire central part of the town, causing heavy damage and destroying several historic buildings.