The Old Catholic Church of Austria (German: Altkatholische Kirche Österreichs) is the Austrian member church of the Union of Utrecht of the Old Catholic Churches. Within the Union of Utrecht, the Old Catholic Church of Austria also has delegated jurisdiction over the Old Catholic Church of Croatia, and other regions of former Yugoslavia.^[2]

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In 1997, the church began ordaining women.^[3] In 2007, the church elected as its head Bishop John Okoro, a Nigerian former Roman Catholic priest, who became a member of the Old Catholic Church of Austria in 1999.^[4] Prior to his election he had been the parish priest in Vorarlberg. He retired in 2015, and new Bishop Heinz Lederleitner was elected at the Synod meeting in Klagenfurt on 24 October 2015, and consecrated in Vienna on 13 February 2016.^[5] Following Heinz's retirement, Maria Kubin was consecrated as bishop for the church in 2023.^[6]

The following bishops have governed the Old Catholic Church in Austria.

• Adalbert Schindelar [de] (1925-1926)
• Robert Tüchler [de] (1928-1942)
• Stefan Török [de] (1948-1972)
• Nikolaus Hummel [de] (1975-1994)
• Bernhard Heitz [de] (1994-2007)
• John Okoro [de] (2008-2015)
• Heinz Lederleitner [de] (2016-2023)
• Maria Kubin [de] (2023-)

• Apostolic Nuncio to Austria
• Catholic Church of Austria
• Eastern Orthodoxy in Austria
• Religion in Austria
• Freedom of religion in Austria
• Catholic Church by country