Vlčí Důl is a place, that before the Treaty of Saint-Germain belonged to Austro-Hungary and was situated in the administrative region Böhmisch-Leipa.
Vlčí Důl was formerly part of the German Empire. In the German Empire, the place was called Wolfsthal. The place is now called Vlčí Důl (Česká Lípa-Vlčí Důl) and belongs to Czech Republic.