Lechovitch (Yiddish: לעכוויטש) is a Lithuanian Hasidic dynasty, originating from the city of Lyakhavichy, Belarus, where it was founded by Rabbi Mordechai Jaffe (ca. 1742 - 1810). Lechovitch is a branch of Karlin Hasidism as Jaffe was a leading disciple of Rabbi Shlomo of Karlin. The Slonim, Koidanov, and Kobrin dynasties derive from Lechovitch Hasidism.