Mordechai Piron (Hebrew: ????? ??????; born Egon Pisk; 28 December 1921 – 28 May 2014) was the second chief military rabbi in the history of the Israel Defense Forces (IDF), after his predecessor, Rabbi Shlomo Goren, created the position in 1948.
Rabbi Piron served in the position from 1969 to 1980, with a rank of general.
Upon his retirement from his IDF position, he relocated to Zürich, to serve till 1992 as rabbi of the Israelitische Cultusgemeinde Zürich (ICZ), the biggest Jewish congregation in Switzerland.
Rabbi Piron has published several books on Jewish philosophy and theology and was the head of the Sapir Center for Jewish Education and Culture in Jerusalem.
He was an advocate of interfaith dialogue among world religions, chaired The Israel Jewish Council for Interreligious Relations (IJCIR), and sat on the board of world religious leaders for The Elijah Interfaith Institute.