רבי אליהו ב"ר אהרן יהודה בעל שם מחלם היה מקובל ורב קהילת חלם.
Elijah bar Aaron Judah Baal Shem was a Polish rabbi and kabbalist who served as chief rabbi of Chełm. One of the most eminent Talmudists of his generation, he is recorded as the first person known by the epithet "Ba'al Shem" having been considered a great saint and believed to have used miraculous powers to create a golem.