The Diocese of Dubrovnik ; or Ragusa is a Latin Church ecclesiastical territory or diocese of the Catholic Church in southern Croatia. The diocese is centred in the city of Dubrovnik. It was first erected in 990. From 1120 to 1828 it was elevated to the status of archdiocese. By papal bull Locum Beati Petri it was degraded to the level of a diocese in 1828.

The Archdiocese of Split-Makarska is a Latin Metropolitan archdiocese of the Catholic church in Croatia and Montenegro. The diocese was established in the 3rd century AD and was made an archdiocese and metropolitan see in the 10th century. The modern diocese was erected in 1828, when the historical archdiocese of Salona was combined with the Diocese of Makarska. It was elevated as an archdiocese and metropolitan see in 1969, restoring the earlier status of the archdiocese of Split, as it is also known. The diocese was also known as Spalato-Macarsca.