Rabbi Yekusiel Yehuda Teitelbaum (1808-1883), known as the Yetev Lev, was a Hasidic Rebbe in Austria-Hungary. He was the son of Rabbi Eliezer Nison Teitelbaum, rabbi of Drubitsh, who was the son of the Yismach Moshe (Rabbi Moshe Teitelbaum; famous Orthodox rabbis are sometimes known by the titles of their religious works) of Ujhel, Hungary. He was to become the grandfather of Rabbi Joel Teitelbaum, the rebbe of Satmar who migrated to the United States after the Holocaust.