Cisleithania (, also
Zisleithanien, , , , , , ,
transliterated:
Tsysleitàniia) was a common yet unofficial denotation of the northern and western part of
Austria-Hungary, the Dual Monarchy created in the
Compromise of 1867—as distinguished from
Transleithania, i.e. the Hungarian
Lands of the Crown of Saint Stephen east of ("beyond") the
Leitha River.