Vien (וויען) is a Rabbinical hasidic dynasty originating in present-day Vienna.
The previous rav of Vien was Rav Chaim Z. Hersh Zegelbaum of Brooklyn, New York.
He was a descendant of Rav Menachem Mendel Stern (1759–1834)[1] of Sighet, author of Derech Emunah.