Hans Schweitzer (25 July 1901 – 1980), known as Mjölnir, was an artist who produced many posters for the Nazi Party under Adolf Hitler.
He was recruited to produce Nazi propaganda posters by Joseph Goebbels. The posters depicted crude but memorable caricatures of the NSDAP's opponents. He was named a professor in 1937, and became a "Reich Delegate for Artistic Expression" and chairman of the Reich Committee of Press Illustrators. Schweitzer survived the war and had a successful career in graphic arts.
In Teutonic mythology, Mjölnir is the name of Thor's hammer.