Stadttheater Wiener Neustadt, Theatre in Wiener Neustadt, Austria

Stadttheater Wiener Neustadt is a heritage-protected building on Herzog-Leopold-Straße that hosts theater, music, and dance performances. The venue presents classical works, contemporary productions, and also screens films on its large cinema screen.

The theater opened in 1794 and became a center for performing arts in Lower Austria. Over more than two centuries, it has remained an important venue in the region's cultural history.

The building began as a Carmelite convent church, consecrated in 1668 and secularised under Joseph II before being converted into a theatre. Its classical facade dates from 1793. The former convent furnishings, including the high altar, side altar, pulpit, organ and sacristy cupboard, were moved to the parish church of Wolfpassing an der Hochleithen.

The theater stands at Herzog-Leopold-Straße 17–21, in the building of the former Carmelite convent church. The auditorium has two tiers and 624 seats, reached after the 1977–1979 renovation. The house reopened on 8 November 2024 after a general renovation costing around 14.5 million euros.

The iron safety curtain was painted by Wolfgang Hutter, a leading figure of the Vienna School of Fantastic Realism, and is described as the largest oil painting by that artist. The former monastery church furnishings, including the high altar, side altar, pulpit, organ and sacristy cupboard, were moved to the parish church of Wolfpassing an der Hochleithen.