Marienkirche, Catholic church in Oberhausen, Germany

Marienkirche is a Catholic church in Oberhausen characterized by twin towers that rise prominently above the surrounding area. The interior houses a substantial pipe organ with multiple registers, created using traditional organ-building methods.

The first church on this site was built in 1857, but it was replaced by the current building in 1894 as the city expanded and the parish needed more space. This newer structure became the central religious hub for the growing Catholic community.

The parish, named after the church, is today the mother parish of a large merged community: since 15 April 2007 it has gathered the former parishes of Heilig Geist, Heilige Familie, St. Johannes Evangelist, St. Katharina and Zu Unserer Lieben Frau, with 15,740 members in total. Pastor Thomas Eisenmenger has led St. Marien since 1999. The church also gave its name to the Marienviertel district around it.

The church is centrally located between two major streets and accessible by public transportation. Visitors should know that interior access may be limited during services or special events.

The altar consists of two white marble blocks holding relics of the martyrs Clemens and Felicitas; a bronze figure by Toni Zenz in front of it points to them. Zenz also made the altar cross, which shows Jesus on the tree of life with Mary at his breast, its roots reaching down to the altar.