A Catholic Diocese is a specific geographical area overseen by a bishop within the Catholic Church. It serves as a local administrative unit, providing spiritual guidance and support to the community of believers. Each diocese includes multiple parishes, which are local congregations where Catholics gather for worship and other activities. The bishop, who is appointed by the Pope, is responsible for the pastoral care of the diocese, ensuring that the teachings of the Catholic faith are upheld. Dioceses vary in size and population, and they play a crucial role in the organization and mission of the Church.