Jacob Ben-Ami (November 23 or December 23, 1890, Minsk, Russian Empire – July 2, 1977, New York City, New York, United States) was a noted Russian-born Jewish stage actor who performed equally well in Yiddish and English. He was born and grew up in Russia, performing in various acting troupes, before emigrating to the United States in 1912. He had a long and distinguished international career, including acting in, staging and directing a number of Broadway plays. In 1918, he founded or co-founded the Jewish Art Theatre. His niece is the actress and film director Jennifer Warren.