The Diocese of Paderborn is a Roman Catholic diocese located in the northwestern part of Germany. Established in 799 AD, it is one of the oldest dioceses in the country. The diocese covers a significant area, including parts of the federal states of North Rhine-Westphalia and Lower Saxony. Its seat is in the city of Paderborn, which is known for its historical significance and beautiful churches. The diocese is part of the Ecclesiastical Province of Cologne and serves a diverse population of Catholics. It is responsible for various parishes, educational institutions, and social services, promoting the Catholic faith and community engagement. The current bishop is Bishop Heinz-Josef Algermissen.