National Register of Historic Places listings in Harrison County, Mississippi

This is a list of the National Register of Historic Places listings in Harrison County, Mississippi.

This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Harrison County, Mississippi, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in a map.

There are 50 properties and districts listed on the National Register in the county, including 1 National Historic Landmark. Another 14 properties were once listed but have been removed.