Aryeh Löb ben Mordecai Ha-Levi Epstein (Ba'al ha-Pardes) (1708 – June 26, 1775) was a Polish rabbi born in Grodno.
He corresponded with Elijah, Gaon of Vilna, and with Jonathan Eybeschütz, with whom he sided in the quarrel about amulets (see Emden-Eybeschütz Controversy).
He is the author of Or ha-Shanim, on the 613 commandments (Frankfurt-on-the-Oder, 1754), Halakah Aḥaronah and Ḳunṭres ha-Ra'yot (ib.
1754; Königsberg, 1759), Sefer ha-Pardes, in three parts: (1) on the Shema and the observance of Shabbat, (2) sermons, (3) funeral orations (ib.
Annotations by him and by his son Abraham Meïr Epstein are published in some of the later editions of the Babylonian Talmud.