Jász may refer to:
*
Jász people
*
Jász language
*
Jász-Nagykun-Szolnok, a county in Hungary
*
Jász-Nagykun-Szolnok (former county), a county in the historical Kingdom of Hungary
*
Jászság
Jászság ("Jaszygia", la, Jazigia) is a historical, ethnographical and geographical region in Hungary. Its territory is situated in the north-western part of the Jász-Nagykun-Szolnok county. The main town in the region is Jászberény. Já ...
(Jász), a historical and geographical region in Hungary
* ''Jász'', the
Hungarian name for Iaz village,
Obreja
Obreja ( hu, Obrézsa) is a commune in Caraș-Severin County, western Romania with a population of 3249. It is composed of four villages: Ciuta (''Csuta''), Iaz (''Jász''), Obreja and Var (''Vár''). It is situated in the historical region of Ban ...
Commune, Caraş-Severin County, Romania
{{DEFAULTSORT:Jasz
ja:ヤース