Nusach Sefard, or
Nusach Sepharad, or
Nusach Sfard is the name for various forms of the Jewish
siddurim, designed to reconcile Ashkenazi
customs (Hebrew: מנהג "Custom", pl.
minhagim) with the
kabbalistic customs of the
Ari. To this end it has incorporated the wording of Nusach Edot haMizrach, the prayer book of
Sephardi Jews, into certain prayers.
Nusach Sefard is used nearly universally by
Hasidim, as well as by some other
Ashkenazi Jews: it has not gained significant acceptance by Sephardi Jews. Each Hasidic dynasty uses its own version of the
Nusach Sefard siddur, often with great divergence between different versions.