Yosef Yaaḳov (Yosḳe) Sabatka (Hebrew: הרב יוסף יאסקי) was a Torah scholar, moralist and ḳabbalist; he is often referred to as "Yosef Yosḳe of Dubno" (or "Joseph ben Judah Jeidel"). He was born in Lublin in 1659, son of the Av Beit Din and ḳabbalist, Yehuda Yudel of Kovel. He was known for his piety, and served as rabbi for the region of Minsk, and later, in 1698, became Av Beit Din of Dubno; he died there in 1702. His primary work, Yesod Yosef was eventually published in 1785. Amongst his students was Rabbi Tzvi Hirsch Kaidanover, author of Kav ha-Yashar (1705).