The Diocese of Rottenburg-Stuttgart is a Roman Catholic diocese located in the southwestern region of Germany. Established in 1821, it serves the spiritual needs of Catholics in the area, covering parts of the federal states of Baden-Württemberg and Bavaria. The diocese is part of the Ecclesiastical Province of Freiburg and is known for its commitment to education, social justice, and community service. The diocese is headquartered in the city of Rottenburg am Neckar, where the Cathedral of St. Martin serves as the main church. It is led by a bishop, who oversees various parishes and institutions, promoting the Catholic faith and engaging with local communities.