Baruch Epstein or Baruch ha-Levi Epstein (1860–1941) (Hebrew: ברוך הלוי אפשטיין) was an Ashkenazi Jewish rabbi, best known for his Torah Temimah commentary on the Torah.

Epstein grew up in Novarodok, where his father was the communal rabbi, but moved to the city of Pinsk after his marriage to the daughter of Rabbi Elazar Moshe Horowitz, and lived there until his death, apart from a period from 1923 to 1926, which he spent in the United States looking (unsuccessfully) for a rabbinic position.

During this period he served as the first menahel (director) of Ezras Torah from around 1924 until he was succeeded by Rav Henkin around the year 1925.

Epstein authored a number of popular and scholarly works which are still used widely.

Epstein died of natural causes in the Jewish hospital when Pinsk was under Nazi occupation.