The Greek Catholic Churches were present in the Austrian Empire since November 21, 1611 when the Serbian Orthodox Bishop Simeon Vratanja of Marča traveled to Rome and formally accepted the jurisdiction of the pope over his bishopric, which eventually became the Eparchy of Križevci in 1777.

The same decree arranged that all the Byzantine Catholic faithful of Austria should pass into the personal jurisdiction of the archbishop: In erga fideles rite commorantes Byzantini fines intra Reipublicae Austriacae.

Another decree of October 3, 1945, decided to extend the jurisdiction of the archbishop (facultates omnes) and on November 1, 1945 he was appointed vicar general of the Byzantine Catholics in Austria.

There are larger Ukrainian and Romanian communities and smaller Melkite, Byzantine groups of Italo-Albanians, Ruthenians, Greeks, Bulgarians, Slovaks and Hungarians.

[6] The first congregation in present-day Austria was founded in Vienna in 1783, when Galicia and Lodomeria became part of the Habsburg monarchy during the Polish partition and Ukrainians, also called Ruthenians increasingly came to the capital of the empire.

In the 1990s, Ukrainian Catholic war refugees from Bosnia Herzegovina, mostly from the Republika Srpska, fled to Austria, and more emigrations from Ukraine and Poland took place, which in turn increased the number of believers.