Church of Saint Mary of the Victory, Gothic Revival parish church in Rudolfsheim-Fünfhaus, Austria.

The Church of Saint Mary of the Victory is a Gothic Revival church of dark reddish-brown brick with lighter stone trim, built 1868–1875 to designs by Friedrich von Schmidt. A ribbed dome with a lantern rises between two spired towers with clock faces; the gabled facade has a rose window above a large pointed-arch window and portal. Eight central pillars are ringed by chapels, and the building reaches 68 metres.

Designed by Friedrich von Schmidt, the architect of Vienna City Hall, the building was constructed between 1868 and 1875 during a period of urban growth. This church was built to serve the expanding population of the district during the city's rapid development in the 19th century.

The name comes from a copy of the Maria vom Siege painting on the right side altar, linked to the legend of a damaged image of grace that was said to aid the Catholic League's victory at the Battle of the White Mountain on 8 November 1620. The same image gave Rome's Santa Maria della Vittoria its dedication. From 1985 the church was run by the Kalasantiner order, and in 2015 it was given to the Coptic Orthodox Church.

The church stands on the Mariahilfer Gürtel in the 15th district, Rudolfsheim-Fünfhaus. Since 2015 it has belonged to the Coptic Orthodox Church, so opening times follow that community's services rather than a Catholic parish schedule. The Fünfhaus parish was dissolved on 30 June 2016 and its area joined to Reindorf.

The organ was built in 1873 by G. F. Steinmeyer & Co. with 24 stops on two manuals and a pedal, and its key and stop action is mechanical. The church reaches a height of 68 metres including the small tower on the dome. Its interior is compared to the decagon of St. Gereon in Cologne, which may have inspired Friedrich von Schmidt.