Joseph Krauskopf (January 21, 1858, Ostrowo, Prussia – June 12, 1923, Atlantic City, New Jersey) was a prominent American rabbi, author, leader of Reform Judaism, founder of the National Farm School (now Delaware Valley University), and long-time (1887-1923) rabbi at Reform Congregation Keneseth Israel (KI), the oldest reform synagogue in Philadelphia which under Krauskopf, became the largest reform congregation in the nation.