Latveria is a fictional country appearing in American comic books published by Marvel Comics. It is depicted within the storylines of Marvel's comic titles as a small, isolated European country ruled by the fictional Supreme Lord Doctor Doom, supposedly located in the Banat region. It is surrounded by the Carpathian Mountains, and also borders fictional Symkaria to the south. Its capital is Doomstadt.

Doctor Doom is a supervillain appearing in American comic books published by Marvel Comics. Created by Stan Lee and Jack Kirby, the character first appeared in The Fantastic Four #5. In his comic book appearances, Doctor Doom is depicted as the monarch of Latveria whose goal is to bring order to humanity through world conquest. He serves as the archenemy of Reed Richards and the Fantastic Four, though he has also come into conflict with other superheroes in the Marvel Universe, including Spider-Man, Iron Man, Doctor Strange, the Black Panther, the X-Men, and the Avengers. While usually portrayed as a villain, Doom has also been an antihero at times, working with heroes if their goals align and only if it benefits him.