The Diocese of Ulm is a Roman Catholic diocese located in southern Germany. It was established in the 8th century and is part of the Archdiocese of Freiburg. The diocese covers parts of the federal states of Baden-Württemberg and Bavaria, with its seat in the city of Ulm. The diocese is known for its rich history and cultural heritage, including the famous Ulm Minster, which is one of the tallest churches in the world. The Bishop of Ulm oversees the spiritual and administrative functions of the diocese, serving the local Catholic community and promoting religious education.