Shlomo Zalman Auerbach (; July 20, 1910 – February 20, 1995) was a renowned Orthodox Jewish rabbi, posek, and rosh yeshiva of the Kol Torah yeshiva in Jerusalem. The Jerusalem neighborhood Ramat Shlomo is named after Rabbi Auerbach. Biography Shlomo Zalman Auerbach was the first child to be born in the Sha'arei Hesed neighborhood of Jerusalem founded by his maternal grandfather, Rabbi Shlomo Zalman Porush, after whom he was named. His father, Rabbi Chaim Yehuda Leib Auerbach, was rosh yeshiva of Shaar Hashamayim Yeshiva, and his mother was Rebbetzin Tzivia. By the age of eleven he was proficient in the entire talmudic tractate of Kiddushin. As a teenager he attended the Etz Chaim Yeshiva in Jerusalem. He was known for his diligence which is illustrated by an event which occurred while he was in yeshiva. On the day the first automobile rolled into Jerusalem along the Jaffa Road, all the students left their studies to marvel at the horse-less wagon. Only young Shlomo Zalman remained in his chair immersed in his studies. Following his marriage, he studied under Rabbi Zvi Pesach Frank at Kollel Kerem Tzion which focused on the laws of the Land of Israel. He was known as one of the Charedi Ashkenazi supporters for Heter Mechira during the Shmita year. His first major published work, Meorei Esh, was the first ever written on the subject of using electricity on Shabbat. The work was endorsed by Rabbi Chaim Ozer Grodzinski who read it and declared: "Or chadash al Tziyon ta'ir" — "A new light will shine upon Zion" — a quote from the daily morning prayers. He had a close association with Rabbi Chaim Ozer Grodzinski, as well as the Chazon Ish and Rabbi Elazar Menachem Shach, the two iconic and preeminent leaders of Lithuanian Haredi Judaism of the first and middle segments of the 20th century. He became the pre-eminent halachic decisor of his time in Israel, respected by all streams of Orthodox Judaism. He was unique in his approach to halacha through thought experiments. He was the brother-in-law of Rabbi Sholom Schwadron, who married his sister Leah. The two shared a long and close relationship as learning partners and personal friends. Renowned for his lucid classes as Rosh Yeshiva, his thousands of students continue to influence the Torah world today. Auerbach died on February 20, 1995. An estimated 300,000 - 500,000 people attended his funeral in