Years: 1822–1889
Primary city: Pietrekov
Rabbi Chaim Elazar Wachs was a Polish posek who served as rabbi of Kalisz and Piotrkow in the latter half of the 19th century. He authored the responsa Nefesh Chaya, a work for which he became widely known. He was also president of Kupat Rabbi Meir Baal HaNes for Kollel Polen and was highly active in supporting the Jewish settlement in Eretz Yisrael.