Johannes Nepomuk chapel, Baroque chapel in Währing, Vienna, Austria.

The Johannes Nepomuk Chapel is a baroque chapel at Gersthofer Straße 129 in Währing, built 1736–1737 as a house and burial chapel for Matthäus Lydl von Schwanau. Its rectangular main room has a dome, and the south choir carries a tower top. The north facade has three axes with niche figures of Saint Anthony of Padua and Mary Magdalene, and a bust relief of John Nepomuk in the gable.

Built in 1736, this chapel reflects the baroque architectural style prevalent in Austrian religious buildings of that era. The structure received official heritage protection status, ensuring its baroque characteristics are preserved for future generations.

The chapel is dedicated to Saint John of Nepomuk; it was consecrated on 18 October 1739, ten years after his canonisation. Matthäus Lydl von Schwanau, born in 1670 in the house at Gersthofer Straße 127, founded it as a public chapel for the villagers, not only for his own Mass attendance. The oil painting above the high altar, showing John of Nepomuk before King Wenceslaus, is by Andreas Viso and dated 1737.

The chapel is centrally located in Währing and easily accessible by public transportation, with tram lines serving the area directly. Visitors should check opening hours in advance, as this is an active place of worship with regular services.

The chapel was built from 1736 to 1737 as a private house and burial chapel for Matthäus Lydl von Schwanau, a court war councillor who had settled in Gersthof and did not want to walk to the Währing parish church for daily Mass. He endowed it as a public chapel for the villagers, and in 1784 it became the first parish church of Gersthof.