Yaakov Yitzchok Ruderman, American rabbi and scholar (b. 1901)
Yaakov Yitzchok Ruderman (Shushan Purim 1900, Daŭhinava - July 11, 1987) was a prominent Talmudic scholar and rabbi who founded and served as rosh yeshiva (yeshiva head) of Yeshivas Ner Yisroel in Baltimore.