Nyírtass, formerly Tass (German: Tausch, Yiddish: טאהש‎ Tash), is a Hungarian village in Szabolcs-Szatmár-Bereg county. The village dates back to the 13th century; the name of the river Nyír was added as a prefix in 1908.The town has a rich Jewish history, as it had two famous rabbis living there. The Tosh Hasidic Dynasty, originating from Nyírtass, has a Jewish community in Boisbriand, Quebec, Canada named Kiryas Tosh.