Hornosteipel is the name of a Hasidic dynasty founded by Rebbe Yaakov Yisroel Twerski. Hornosteipel (Yiddish: הארנאסטייפל ) is the Yiddish name of Hornostaypil, a town in present-day Ukraine.
It is a branch of the Chernobyl and Anipoli dynasties dating back to the 19th century.
Rebbe Yaakov Yisroel Twerski, founder of the Hornosteipel dynsasty, was the third son of the Chernobler Maggid, Rebbe Mordechai Twersky. Rebbe Mordechai's father, Rebbe Menachem Nahum Twersky of Chernobyl (author of Meor Einayim), was a disciple of the Baal Shem Tov, the founder of Hasidism. The main bases of Hornosteipel Hasidim are in Midwood ("Flatbush"), Brooklyn, and Milwaukee, with a branch in Jerusalem. There are also communities with direct ties to Hornosteipel in Chicago, Toronto, Baltimore, and Beit Shemesh, Israel. There was formerly a Hornosteipel community in Denver.
Rebbe Yaakov Yisroel had four daughters and no sons.