Chaya Mushka (Moussia) Schneerson (March 16, 1901 – February 10, 1988), referred to by Lubavitchers as The Rebbetzin, was the wife of Rabbi Menachem Mendel Schneerson, the seventh and last Rebbe (spiritual leader) of the Chabad-Lubavitch branch of Hasidic Judaism.
She was the second of three daughters of the sixth Lubavitcher Rebbe, Rabbi Yosef Yitzchok Schneersohn.
She was named after the wife of the third Lubavitcher Rebbe, Rabbi Menachem Mendel Schneersohn.