In Marvel Comics, the fictional country ruled by Doctor Doom is Latveria.
Latveria is a small European nation in the Marvel Universe. Victor von Doom, better known as Doctor Doom, rules it as both monarch and dictator. The country’s isolated setting and advanced technology are recurring parts of Doom’s character.
Doctor Doom presents himself as Latveria’s protector and often claims that his absolute rule benefits its citizens. Stories commonly contrast that claim with his authoritarian methods and personal ambition. Latveria also serves as the setting for Doom’s castle and scientific laboratories.
Latveria is not the same as Symkaria, another fictional European country in Marvel Comics. Symkaria is associated with Silver Sable, while Wakanda is the African nation associated with Black Panther and its vibranium technology.