The following list presents the full set of National Register of Historic Places listings in Multnomah County, Oregon. However, please see separate articles for listings in each of Portland's six quadrants.
The James S. Polhemus House is a house located in southeast Portland, Oregon, listed on the National Register of Historic Places.
The Annand–Loomis House is a house located in southwest Portland, Oregon, listed on the National Register of Historic Places. It has also been known as the John Annand House and as the Lee B. Loomis House.
The Ball–Ehrman House is a house located in southwest Portland, Oregon, listed on the National Register of Historic Places.
The Joseph R. Bowles House is a house located in southwest Portland, Oregon, that is listed on the National Register of Historic Places.
The Giesy–Failing House is a house located southwest Portland, Oregon listed on the National Register of Historic Places. It is located in the Southwest Hills neighborhood.
The Thomas J. Autzen House is an historic house located in northeast Portland, Oregon.
The Frank C. Barnes House, also known as the Barnes Mansion, is a house located in northeast Portland, Oregon, United States, that is listed on the National Register of Historic Places. Author Beverly Cleary called the house "haunted" in her Ramona Quimby series.
The George Earle Chamberlain House is a house located in northeast Portland, Oregon, listed on the National Register of Historic Places (NRHP). The house was built in 1893 and its original owner was Frank M. Warren. In 1904, the house was acquired by George Earle Chamberlain, who was then in his first term as Governor of Oregon, and Chamberlain owned and occupied the house until his death in 1928. Soon after buying the house, Chamberlain remodeled the first and second floors, both interior and exterior. Since the time of Chamberlain's ownership, modifications to the building have been few.
The Virgil and Beulah Crum House is a house located in northeast Portland, Oregon, listed on the National Register of Historic Places.
The Del Rey Apartments, located in northeast Portland, Oregon, are listed on the National Register of Historic Places.
The Henry B. Dickson House is a house located in northeast Portland, Oregon, listed on the National Register of Historic Places.
The Emerson Apartments, located in northeast Portland, Oregon, are listed on the National Register of Historic Places.
The Groat–Gates House is a house located in northeast Portland, Oregon listed on the National Register of Historic Places.
The Lindquist Apartment House is an apartment complex located in northeast Portland, Oregon listed on the National Register of Historic Places.
The Robert F. Lytle House is a house located in northeast Portland, Oregon, listed on the National Register of Historic Places. The architect was David L. Williams. The interior includes stained-glass windows by Povey Brothers Glass Company.
The Henry B. Miller House is house located in northeast Portland, Oregon listed on the National Register of Historic Places. It was built in 1911 and designed by Ellis F. Lawrence.
The Nicolai–Cake–Olson House is a residence located in northeast Portland, Oregon listed on the National Register of Historic Places.
The August Olson House is house located in northeast Portland, Oregon listed on the National Register of Historic Places.
