Mordechai Shmuel Ashkenazi (‎; 1943 – 14 January 2015) was an Israeli Orthodox rabbi and writer. He was a member of the Chabad Hasidic movement. He was the chief rabbi of the Chabad community of Kfar Chabad, Israel from 1983 until his death. He was also an authority on Halakha (Jewish law) and Hasidic philosophy.