The term Judeophobia stands for fear or irrational hatred of Jews. It was invented by Leon Pinsker in his pamphlet Autoemancipation (text) published anonymously in German language on January 1, 1882.

As a professional physician, Pinsker preferred medical term "Judeophobia" to a recently introduced (in 1879) misnomer "anti-Semitism". Pinsker knew that a combination of mutually exclusive assertions is a characteristic of a psychological disorder and was convinced that pathological, irrational phobia may explain this millennia-old hatred: "... to the living the Jew is a corpse, to the native a foreigner, to the homesteader a vagrant, to the proprietary a beggar, to the poor an exploiter and a millionaire, to the patriot a man without a country, for all a hated rival."