Emicho was a count in the Rhineland in the late 11th century. He is also commonly referred to as Emicho of Leiningen or Emich of Flonheim, and not to be confused with Bishop Emicho of Leiningen. In 1096, he was the leader of the Rhineland massacres (sometimes referred to as the "German Crusade of 1096") which were a series of mass murders of Jews that took place during the People's Crusade.