Philip S. Berg (original name Feivel Gruberger, Hebrew: שרגא פייבל; August 20, 1927 – September 16, 2013) was an American rabbi and dean of the worldwide Kabbalah Centre organization. Berg was a great populariser of Ashlagian Kabbalah. Having written a number of books on the subject of Kabbalah, Berg expanded its access to a greater audience than traditionally permitted, one which included secular Jews, non-Jews and women. Berg initially aimed at returning alienated Jews to their heritage through the teachings of Yehuda Ashlag, however he later adopted a more universalistic approach.