List of Famous people named Isaac

Isaac Luria Ashkenazi, commonly known in Jewish religious circles as "Ha'ARI", "Ha'ARI Hakadosh" [the holy ARI] or "ARIZaL" [the ARI, Of Blessed Memory ], was a leading rabbi and Jewish mystic in the community of Safed in the Galilee region of Ottoman Syria, now Israel. He is considered the father of contemporary Kabbalah, his teachings being referred to as Lurianic Kabbalah. While his direct literary contribution to the Kabbalistic school of Safed was extremely minute, his spiritual fame led to their veneration and the acceptance of his authority. The works of his disciples compiled his oral teachings into writing. Every custom of the Ari was scrutinized, and many were accepted, even against previous practice.

Isaac Aboab of Castile, also known as Isaac Aboab II, was a Spanish-Jewish Rabbi, Posek and Torah commentator.

Isaac Butt, was an Irish barrister, editor, politician, Member of Parliament (M.P.) in the House of Commons of the United Kingdom, economist and the founder and first leader of a number of Irish nationalist parties and organisations. He was a leader in the Irish Metropolitan Conservative Society in 1836, the Home Government Association in 1870 and in 1873 the Home Rule League. Colin W. Reid argues that Home Rule was the mechanism Butt proposed to bind Ireland to Britain. It would end the ambiguities of the Act of Union of 1800. He portrayed a federalised United Kingdom, which would have weakened Irish exceptionalism within a broader British context. Butt was representative of a constructive national unionism. As an economist he made significant contributions regarding the potential resource mobilization and distribution aspects of protection, and analysed deficiencies in the Irish economy such as sparse employment, low productivity, and misallocation of land. He dissented from the established Ricardian theories and favored some welfare state concepts. As editor he made the Dublin University Magazine a leading Irish journal of politics and literature.

Isaac Lawrence Milliken served as mayor of Chicago, Illinois from 1854 to 1855. He was a member of the Democratic Party.

Isaac Halstead Williamson was an American politician who served as the eighth Governor of New Jersey, from 1817 to 1829.

Isaac Watts was an English Christian minister (Congregational), hymn writer, theologian, and logician. He was a prolific and popular hymn writer and is credited with some 750 hymns. He is recognized as the "Godfather of English Hymnody"; many of his hymns remain in use today and have been translated into numerous languages.

Isaac Low was an American merchant in New York City who served as a member of the Continental Congress and as a delegate to the New York Provincial Congress. Though originally a Patriot, he later joined the Loyalist cause in the American Revolution.

Isaac ben Reuben Albargeloni was a Spanish Talmudist and liturgical poet born in Barcelona, Catalonia. He was a judge in the Denia community, where he became connected with ibn Alḥatosh, likely due to becoming his son-in-law. Among his later descendants was Moses ben Naḥman (Naḥmanides); Judah Albargeloni is said to have been Isaac's pupil. He was one of five prominent contemporaneous scholars named Isaac and the regard in which he was held by his own and succeeding generations is indicated by the fact that he is simply designated "Ha-Rab Albargeloni." He wrote commentaries on various sections of the tractate Ketubot, and at the age of thirty-five (1078) translated, from the Arabic into Hebrew, Hai Gaon's Ha-Miḳḳaḥ weha-Mimkar, on buying and selling. Noteworthy among his liturgical poems are his Azharot, included in the rituals of Constantine, Tlemçen, Tunis, Morocco, Algeria, and Oran.

Isaac Dutton Barnard was an American lawyer and politician who served as a United States Senator for Pennsylvania from 1827 to 1831. He served as a Major in the U.S. Army during the War of 1812 and as a Pennsylvania State Senator for the 4th district from 1820 until 1826.