Hasidut (from the , Sephardic pronunciation: [ḥasidut]; Ashkenazic pronunciation: [chasidus]; "piety" or "loving-kindness"), alternatively transliterated as hasiduth, may refer to:
Hasidic Judaism - a branch of Orthodox Judaism, founded in 18th-century Eastern Europe by Rabbi Yisroel ben Eliezer (Baal Shem Tov)
Hasidic philosophy - the teachings, interpretations, and various practices of Judaism as articulated by the Hasidic movement