The Roman Catholic Diocese of Acqui is a diocese located in the region of Piedmont, Italy. Established in the 3rd century, it has a rich history and is part of the Ecclesiastical Province of Turin. The diocese serves a diverse population and encompasses several parishes, providing spiritual guidance and support to its community. The diocese is centered in the city of Acqui Terme, known for its thermal springs and historical significance. The cathedral, Cattedrale di Santa Maria Assunta, serves as the diocese's main church and is a key site for religious activities and ceremonies.