The Ozerov Hasidic dynasty is a Hasidic Jewish dynasty founded in 1827 when Yehudah Leib Epstein, rabbi of Ożarów in Poland since 1811, assumed leadership of his Hasidim ("disciples").
Epstein was a disciple of the Seer of Lublin, Yaakov Yitzchak Rabinowicz of Prshiskhe, the Ohev Yisrael of Apt, Poland[citation needed], and Myer of Apt. When Myer died in 1827, his hasidim (dynastic followers) asked Epstein to be their new rebbe (hereditary dynastic rabbinical leader). He moved to Opole towards the end of his life and died in 1837. He was succeeded by his son, Rabbi Yechiel Chaim Epstein, who was succeeded by his own son, Rabbi Arye Yehuda Leib Epstein, author of the Hasidic work Birkas Tov, in 1887. Two of Arye Yehuda Leib Epstein's six children became rebbe of the dynasty, Avraham Shlomo Epstein (1864-1917) (who succeeded his father in 1913), and Alter Moshe David Epstein, who became rebbe on his brothers death in 1917 and was succeeded by his son, Moshe Yechiel Epstein.