National Register of Historic Places listings in Cumberland County, Maine

This is a list of the National Register of Historic Places listings in Cumberland County, Maine.

This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Cumberland County, Maine, 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 232 properties and districts listed on the National Register in the county, including 12 National Historic Landmarks. 142 of these properties and districts, including 5 National Historic Landmarks, are located outside of Portland, and are listed here, while the properties and districts in Portland are listed separately. Two once-listed properties outside of Portland have been removed.