List of churches in the Roman Catholic Diocese of Wilmington

This is a list of current and former Roman Catholic churches in the Roman Catholic Diocese of Wilmington. The diocese covers the entire state of Delaware and the Eastern Shore region of Maryland. The cathedral church of the diocese is the Cathedral of St. Peter in Wilmington, Delaware.

The active parishes in the archdiocese are divided here into deaneries.

City Deanery
This list contains parishes in the City of Wilmington in Delaware.

Brandywine Deanery
This list contains parishes in Wilmington and other communities in northeastern Delaware.

Central New Castle Deanery
This list contains parishes in Wilmington, New Castle and other communities in northern Delaware.

Eastern Shore Deanery
This list contains parishes and mission churches in Maryland on Chesapeake Bay.

Iron Hill Deanery
This list contains parishes in Newark and other communities in both Maryland and Delaware.

Silver Lake Deanery
This list contains parishes in both Delaware and Maryland, most of them close to Delaware Bay.

Ocean Deanery
This list contains parishes and mission churches in Maryland and Delaware, with most of them on the Atlantic Seaboard.