Norbert Jacques (6 June 1880 – 15 May 1954) was a Luxembourgish novelist, journalist, screenwriter, and translator who wrote in German. He was born in Luxembourg-Eich, Luxembourg and died in Koblenz, West Germany. He created the character Dr. Mabuse, who was a feature of some of his novels. Dr. Mabuse, der Spieler, the first novel to feature Mabuse, was one of the bestsellers of its time; it sold over 500,000 copies in Germany. Today, Jacques is known best for Dr. Mabuse. In 1922, he received German citizenship.