The Diocese of Koszalin-Kołobrzeg is a Roman Catholic diocese located in northwestern Poland. Established in 1972, it is part of the Ecclesiastical Province of Szczecin-Kamień and serves a diverse population across several towns and rural areas. The diocese is known for its rich history and cultural heritage, reflecting the traditions of the region. The diocese's administrative center is in the city of Koszalin, where the Cathedral of the Assumption of the Blessed Virgin Mary serves as the main church. It encompasses various parishes, promoting spiritual growth and community engagement through religious services and educational programs.