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 Ayer–Shea House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Bates–Seller House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Burke–Clark House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Cardwell–Holman House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Frank E. Dooly House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Elizabeth Ducey House is a house located in northwest Portland, Oregon, listed on the National Register of Historic Places.
The Harmon–Neils House is a house located in northwest Portland, Oregon, listed on the National Register of Historic Places.
The George F. Heusner House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Lewis H. Mills House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Paul F. Murphy House is a house located in northwest Portland, Oregon, listed on the National Register of Historic Places.
The Isaac Neuberger House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Pacific Coast Biscuit Company Building is a building located in northwest Portland, Oregon, listed on the National Register of Historic Places. The building originally housed the Portland Cracker Company and later was home to the Pacific Coast Biscuit Company.
The Frank C. Stettler House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Ernest G. Swigert House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Wilson–South House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
