The Protestant Church in Germany, formerly known in English as the Evangelical Church in Germany, is a federation of twenty Lutheran, Reformed, and United Protestant regional Churches in Germany, collectively encompassing the vast majority of the country's Protestants. In 2022, the EKD had a membership of 19,153,000 members, or 22.7% of the German population. It constitutes one of the largest Protestant bodies in the world. Church offices managing the federation are located in Herrenhausen, Hanover, Lower Saxony. Many of its members consider themselves Lutherans.

Lower Saxony is a German state in northwestern Germany. It is the second-largest state by land area, with 47,614 km2 (18,384 sq mi), and fourth-largest in population among the 16 Länder federated as the Federal Republic of Germany. In rural areas, Northern Low Saxon and Saterland Frisian are still spoken, albeit in declining numbers.