Holy Cross Church, Roman Catholic church in Dortmund, Germany

Holy Cross Church, often called Kreuzkirche, is a three-nave basilica of dark brick built in 1914–1916 to designs by Dortmund architect Hans Homann. The facade is laid in a diamond lattice pattern, with tall narrow arched windows fitted with horizontal louvres and two circular recessed openings below them. The tower on the right is topped by two steeply pointed, pale green pyramidal spires side by side.

The parish was founded on 3 May 1911 as an offshoot of the Liebfrauen parish, and construction of the church at Vinckeplatz began in mid-1914. Despite the First World War, the brick Expressionist basilica by Dortmund architect Hans Homann was finished within two years. Badly damaged in the Second World War except for the tower, it was rebuilt from 1947, and the interior was redesigned in 1957–58 and again in 1992 by architect Gisberth Hülsmann.

The church gave its name to the surrounding Kreuzviertel, whose housing was built south of Dortmund's old ramparts after 1900. The mosaic in the main portal's tympanum, made in 1915/16, shows Ecclesia and Synagoga flanking a triumphant Christ; the parish calls the image "offensive" on its own website and explains it as widespread antisemitism of its time, rejected since the Second Vatican Council in 1965.

The church stands at Vinckeplatz in the Kreuzviertel, south of Dortmund's historic city walls, not in the city centre itself. The neighbourhood is residential; the nearest U-Bahn stops lie along the Kreuzviertel's edge, and street parking is limited. The main entrance with its mosaic tympanum faces the square.

The mosaic in the main entrance tympanum, made in 1915/16, shows Christ triumphant on the cross flanked by Ecclesia holding a chalice and a blindfolded Synagogue turning away with a broken staff. The parish now calls the image "offensive" on its own website and explains it as widespread antisemitism of its era.