Yaakov Heruti (15 January 1927 – 28 July 2022)ברוך דיין האמת: נפטר לוחם לח"י יעקב חרותי was an Israeli lawyer, far-right activist and Zionist militant.

Rabbi Yitzchok Yaakov Weiss (15 February 1902 – 14 June 1989), commonly known as the Minchas Yitzchak after the responsa he authored, was the rabbi of the Edah HaChareidis in Jerusalem at the time of his death, as well as a posek (decider on points of Jewish law), and Talmudic scholar.

(March 8, 1934 – August 4, 1981) an Israeli novelist, playwright, and translator.

Yaakov Kedmi (born 5 March 1947 in Moscow), also known as Yasha Kazakov and Yakov Iosifovich Kazakov is a Russian propagandist, an Israeli politician and diplomat.

(also Beis Yaakov, Beit Yaakov, Beth Jacob or Beys Yankev; ) a genericized name for full-time Haredi Jewish elementary and secondary schools for girls worldwide.

Yaakov Yitzchak HaLevi Horowitz, known as "the Seer of Lublin", ha-Chozeh MiLublin; (c. 1745 - August 15, 1815) was a Hasidic rebbe from Poland.

(c. 1365 – September 14, 1427) a Talmudist and posek (authority on Jewish law) best known for his codification of the customs (minhagim) of the German Jews.

("Jacob's Well") a 16th-century compilation of all the Aggadic material in the Talmud together with commentaries.

Yaakov ("Yanky") Lemmer (born November 6, 1983) is an American Chazzan (Jewish cantor) and performing artist.

Yaakov Yisrael Kanievsky, known as The Steipler or The Steipler Gaon (1899 – 10 August 1985),