The Diocese of Carpentras is a Roman Catholic diocese located in the southeastern region of France. It was established in the 5th century and is part of the ecclesiastical province of Avignon. The diocese covers the area around the town of Carpentras and includes several surrounding communities. The diocese is known for its rich history and architectural heritage, including the Cathedral of Saint Siffrein, which serves as its cathedral. The Diocese of Carpentras has played a significant role in the religious and cultural life of the region, contributing to the development of local traditions and practices.