Sanz is a Hasidic dynasty originating in the city of Sanz in Galicia. The dynasty was founded by the rebbe Rabbi Chaim Halberstam (1793–1876) who was the rabbi of Nowy Sącz and the author of the work Divrei Chaim by which name he is known as well.

Hasidism, sometimes spelled Chassidism, and also known as Hasidic Judaism, is a religious movement within Judaism that arose as a spiritual revival movement in Poland and contemporary Western Ukraine, during the 18th century, and spread rapidly throughout Eastern Europe. Today, most of those affiliated with the movement, known as hassidim, reside in Israel and in the United States.