Evangelical Church in Hessen and Nassau

The Evangelical Church in Hessen and Nassau (German: Evangelische Kirche in Hessen und Nassau, EKHN) is a United Protestant church body in the German states of Hesse and Rhineland-Palatinate. According to the Protestant Church in Germany its English name is the Protestant Church of Hesse and Nassau. There is no bishop and therefore no cathedral. One of its most prominent churches is Katharinenkirche in Frankfurt am Main.

Dating back to the union in the Duchy of Nassau in August 1817, before the Prussian Union of September 1817, it is the first United and uniting church in the world. The EKHN is a full member of the Evangelical Church in Germany (EKD), and is based on the teachings brought forward by Martin Luther during the Reformation. The Church President is Christiane Tietz. She succeeded Volker Jung (2009-2025). It is a united church, combining both Calvinist and Lutheran traditions. Member of the Reformed Alliance in Germany. The Evangelical Church in Hesse and Nassau is one of 20 churches in the EKD, has 1,269,605 members in 1,070 parishes (December, 2024). The territory of the EKHN includes the territories of the former People's State of Hesse and the Prussian Wiesbaden Region, which now form the southern and western part of the German state of Hesse and portions of the German state of Rhineland-Palatinate (Rhenish Hesse). It's the most important Protestant denomination in this area. The church is a member of the Communion of Protestant Churches in Europe.