Vlčí Důl is a place, that after the Treaty of Saint-Germain belonged to Czechoslovakia and was situated in the administrative region Česká Lípa.
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.