This list of World War I flying aces from Austria contains the names of aces born in the territory of the modern-day Republic of Austria, which formed part of the Austro-Hungarian Empire. Austria-Hungary was a constitutional union of the Austrian Empire (Cisleithania) and the Kingdom of Hungary (Transleithania) which existed from 1867 to 1918, when it collapsed as a result of defeat in World War I.
References
List of World War I flying aces from Austria Wikipedia(Text) CC BY-SA