Stadtpfarrkirche Stockerau, Parish church in Stockerau, Austria.

The Stadtpfarrkirche Stockerau is a Roman Catholic parish church dedicated to Saint Stephen. Its early classicist nave was built in 1777–1778 by Vienna master builder Peter Mollner after the Gothic nave was demolished, while the 88-metre tower, added in 1722–1725 by mason Franz Jänggl, is the tallest church tower in Lower Austria. The high altar fills the entire apse, and the organ was built by Johann Kaufmann in Vienna.

A Romanesque church stood here from the 11th century; it was rebuilt between 1438 and 1465, and masonry from that church survives in the organ gallery piers. The Gothic nave was demolished and replaced in 1777–1778 by Peter Mollner's early Classicist building. The tower, added 1722–1725 by master mason Franz Jänggl, predates the nave.

The high altar fills the whole apse and was built to a design by Martin Keller, executed by Franz Senger and Karl Müller. Its altarpiece, painted in 1777 by Johann Meidinger, shows the martyrdom of Saint Stephen, the church's patron. Six bells hang in the tower, and almost all are still rung with clappers caught by Klöppelfänger, except bell 6; the full peal uses bells 1–5.

The church stands at Kirchenplatz 3, a short walk from Stockerau's main square. Its 88-metre tower, the tallest church tower in Lower Austria, makes it easy to spot from across town. The tower was renovated in 1984 and again in 2009–2010 because of damp.

The 88-metre tower, added 1722–1725 by master mason Franz Jänggl, makes this the tallest church tower in Lower Austria and one of the fifteen tallest in Austria. It was renovated in 1984 and again in 2009–2010 because of damp.