Karlovec (Opava-Karlovec) is a place, that after the Treaty of Saint-Germain belonged to Czechoslovakia and was situated in the administrative region Opava.
Karlovec (Opava-Karlovec) was formerly part of the German Empire. In the German Empire, the place was called Karlsau (Troppau-Karlsau). The place is now called NN and belongs to Czech Republic.