Ober-Zukau is a place, that before the Treaty of Saint-Germain belonged to Austro-Hungary and was situated in the administrative region Teschen/Cieszyn,Český Těšín.
Ober-Zukau was formerly part of the German Empire. In the German Empire, the place was called Ober Zukau. The place is now called Horní Žukov (Český Těšín-Hrn. Žukov) and belongs to Czech Republic.