Lazaristenkirche, Vienna, Gothic Revival parish church in Neubau, Austria.

The Lazaristenkirche is a neo-Gothic hall church by Friedrich von Schmidt, built 1860–1862, with an octagonal 68-metre tower at the crossing. Its three-aisled interior is 30 metres long and 19 metres high, with a 15-metre-wide transept. The main portal's tympanum holds painted sculptures of Mary with two angels.

The Lazaristenkirche was built as a monastery church for the Lazarists, called to Austria in 1853. It was the first building Friedrich von Schmidt, a native of Württemberg, realized in Vienna. Cardinal Joseph Othmar von Rauscher laid the foundation stone on 27 September 1860, the 200th anniversary of Saint Vincent de Paul's death, and consecrated the finished church to the Immaculate Conception in 1862. Josef Hlávka directed construction, modeled on the Gothic Elisabethkirche in Marburg. The monastery and parish house followed in 1904, the church became a parish church in 1939, and on 1 July 2026 it passed to the Coptic Orthodox Church.

The church is dedicated to the Immaculate Conception and was raised to parish status in 1939. On 1 July 2026 it was handed over to the Coptic Orthodox Church and adapted for its liturgy, which does not use an organ. The parish had already been merged back into Schottenfeld on 31 December 2025.

The church is easily accessible by public transportation in the Neubau district. Visitors should check opening times and service schedules before arriving to ensure access for viewing the interior and architectural details.

In the porch, portrait heads depict the architect Friedrich von Schmidt and the builder Josef Hlávka, who followed the Gothic Elisabethkirche in Marburg as a model. The eight-sided tower at the crossing reaches 68 metres. The organ, built by Matthäus Mauracher in 1862 and rebuilt in 1927/28, has four manuals and 51 stops, with a remote division in the roof above the crossing.