Johanneskirche Klagenfurt, Protestant church building in Klagenfurt, Austria

The Johanneskirche is a neo-Gothic church built from 1864 to 1866 to plans by architect Anton Bierbaum, oriented to the north, with a low recessed choir and a southern polygonal facade tower topped by a pointed spire. The facade has buttresses and tracery windows; the nave and choir carry wall paintings from the construction period, and the open roof truss is painted. A wooden gallery on two supports with a straight parapet runs inside.

The parish was founded on 19 January 1864, after the 1781 Tolerance Patent allowed Protestant worship in Carinthia. The foundation stone of the church by the Lendkanal was laid on 30 September 1863, and the building was consecrated on 30 September 1866. In 1967 the parish was divided and the Christuskirche founded in the east. On 15 September 2018 an arson fire under the gallery damaged the church, which reopened in December 2018.

The parish was founded on 19 January 1864, and the church was consecrated on 30 September 1866. Its name refers to John the Evangelist. The parish today numbers about 4,370 members and extends from west of Bahnhofstraße south to the Loiblpass and west to Maria Wörth, with a daughter church, the Bethaus in Ferlach.

The Johanneskirche is centrally located in Klagenfurt and easily reached on foot from the city center, with parking and public transportation available nearby. Visitors should be aware that the interior with its wooden gallery and narrow stairs may offer limited accessibility for people with mobility issues.

The smallest of the three bells cast by Albert Samassa in Ljubljana in 1866, 85 cm across and 375 kg, still rings today; the other two were taken down in August 1916 for wartime metal. Two new bells from the Perner firm in Schärding completed the peal in 2006 and first rang together on 31 October 2006.