Ägydiuskirche Gumpendorf, Vienna, Protected church building in Mariahilf, Vienna, Austria.

The Ägydiuskirche Gumpendorf is a free-standing parish church built from 1765 to 1770 to plans by Franz Sebastian Rosenstingl, with its tower added in 1792 by Josef Reymund. The facade has a giant Ionic pilaster order over a high base, a projecting central tower with a Welsche Haube and stone figures of Saints Joseph and Leopold, and Roman inscription stones from Emperor Trajan's time set into the west front. The interior has a three-bay main room and a rectangular choir with paintings by Martin Johann Schmidt.

The church was built in 1770 and fit into Vienna's rapid growth during that decade when many new parish churches were constructed. The construction was a response to the growing population of Mariahilf in the 18th century.

The church is dedicated to Saint Aegidius and has been run by the Eucharistin order since 1946. Sunday services are held at 8:00, 10:00 and 18:30. The parish runs a Caritas Le+O distribution point that gives food and free advice to people at risk of poverty.

The building sits in Mariahilf and is visible from the street, making it easy to spot during a walk through the neighborhood. The church is accessible during services, so visiting on weekdays or Sunday mornings works best.

Two memorial plaques hang to the left of the portal, not inside the church. One, by sculptor Robert Ullmann for the Wiener Schubertbund, was unveiled on 30 March 1932 before President Wilhelm Miklas; it records that Haydn's body was blessed here on 1 June 1809. The second, unveiled on 13 March 2015, honours Cardinal Franz König, who served here as an auxiliary chaplain in his last years.