Eliezer ben Isaac ha-Gadol was a German rabbi of the eleventh century. He was a pupil of his cousin R. Simon ha-Gadol of Mainz and of R. Gershom Me'or ha-Golah. David Conforte, relying on the statement in the tosefta to Shab. 54b, says that Eliezer ha-Gadol was the teacher of Rashi;[1] but Rashi himself, in citing Eliezer, does not say so.[2] In Rashi's quotation he is sometimes called Eliezer ha-Gadol and sometimes Eliezer Gaon, which induced Azulai to consider them as two separate persons.[3] According to Menahem di Lonsano[4] Eliezer ha-Gadol was the author of the well-known Orḥot Ḥayyim or Ẓawwa'at R. Eliezer ha-Gadol, generally attributed to Eliezer b. Hyrcanus. As to the authorship of the seliḥah Elohai Basser 'Ammeka, recited in the service of Yom Kippur Katan and attributed to Eliezer by Michael,[5] see Landshuth, 'Ammude ha-'Abodah, p. 20.
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