St. Nikolaus, Roman Catholic church in Sülz, Germany

St. Nikolaus is a three-aisled neo-Romanesque basilica with a transept and a slender tower topped by a rhomboid roof, built from tuff and basalt between 1903 and 1909 to plans by Franz Statz. Its interior holds a 1909 wooden relief behind the priest's seat, a 1892 baptismal font, and 14 Stations of the Cross by Ludwig Feldmann. In 1919 Johannes Osten created three neo-Byzantine mosaics in the main apse and the war memorial chapel, executed by Puhl & Wagner; the apse mosaic shows Christ as Pantokrator between John the Baptist and the Mother of God.

A chapel dedicated to St. Nicholas stood on this site from 1201 until it was demolished in 1474 during the Burgundian Wars. Sülz Catholics first built a subsidiary church at Marsiliusstraße around 1875, raised to an independent parish on 29 June 1892. Sülz citizens then financed the present church, built 1903–1909 to plans by Franz Statz, son of Cologne Cathedral master builder Vincenz Statz.

The parish takes its name from Nicholas of Myra, and the church stands on the site of a chapel to him recorded in 1201 and destroyed in 1474 during the Burgundian Wars. Inside, the main apse holds a neo-Byzantine mosaic made in 1919 by Johannes Osten and executed by Puhl & Wagner, showing Christ as Pantokrator between John the Baptist and the Mother of God.

St. Nikolaus stands on Berrenrather Straße at Nikolausplatz in Sülz, with the entrance facing the square; the church is reached on foot or by the nearby tram stops along Berrenrather Straße. The building is a parish church in active use, so visits fit around services. The 2009 Mühleisen organ with 48 registers is played in concerts announced by the parish.

The 2009 Mühleisen organ has 48 registers on three manuals and pedal, with mechanical key action and electric stop action. Its swell box can be opened into the tower room, letting the organist use it as a distant "Fernwerk" — a feature visitors can hear in the sound moving above the nave.