Alte Kirche, Cultural heritage church in Altenessen district, Essen, Germany.

Alte Kirche in Altenessen is a red brick Neo-Gothic church built 1887–1890 to plans by Carl Nordmann and Julius Flügge. It has four bays and three aisles, a short transept with large rose windows, a polygonal choir with stone rib vaulting, and a west tower topped by a steep light-green pointed spire with corner spires and two clock faces.

The congregation was founded on 25 April 1875, when it counted about 3000 members; a temporary church had opened in 1873. The present building was designed by Carl Nordmann and Julius Flügge, its foundation stone laid on 21 August 1887 and its first service held on 5 October 1890. Immigration for mining and industry doubled membership to 6000 by then, and by 1921 it reached 20,000. During the Kirchenkampf of 1933 to about 1939 the church was a centre of conflict between the Deutsche Christen and the Bekennende Kirche, and it survived the Second World War almost undamaged.

The street where the church stands is named after Karl Denkhaus, its first pastor. Since 2012 the building has carried the "Verlässlich geöffnete Kirche" seal, marking it as a church kept open for visitors. In the Kirchenkampf of 1933 to about 1939 it was a centre of dispute between the Deutsche Christen and the Bekennende Kirche.

The church stands on Denkhausstraße, named after the parish's first pastor Karl Denkhaus, in Altenessen. Since 26 August 2012 it has carried the "Verlässlich geöffnete Kirche" seal, meaning it is kept open on a regular basis. The west tower marks the main approach; the entrance is at its base.

The organ by Wilhelm Sauer, in use since the 1890 dedication on 5 October 1890, is the oldest instrument he built in the Ruhr area. After restoration by Rieger Orgelbau, most of its roughly 1,000 pipes were reworked and the original mechanical action reinstated; it returned to use on 9 September 2017.