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 Zimmerman–Rudeen House is a historic house in Portland, Oregon, United States. It was designed by George A. Eastman and was built in 1913. This Prairie School house was added to the National Register of Historic Places in 1991.
The Simon Benson House is a 19th-century house located in downtown Portland, Oregon. It was listed on the National Register of Historic Places in 1983.
The M. Lloyd Frank Estate, also known as the Frank Manor House, is an historic building on campus of Lewis & Clark College, in Portland, Oregon, United States. It is listed on the National Register of Historic Places.
The Daniel J. Malarkey House is a historic house located in Portland, Oregon. It was the home of noted legislator and trial lawyer Dan Malarkey (1870–1939) from its construction in 1909 until his death. Associated with Progressive causes, Malarkey presided over the Oregon Senate during its 1913 session, when the legislature passed landmark bills establishing a minimum wage and regulating public utilities. In private legal practice, he played a key part in the ultimately successful battle against the 1922 Oregon School Law.
The Bates–Seller House is a house located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Christine Becker 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 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 Henry Hahn 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 Honeyman Hardware Company Building is a historic commercial building located at 832 NW Hoyt Street in Northwest Portland, Oregon. It was completed in 1912 and was listed on the National Register of Historic Places on December 15, 1989.
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 Trinity Place Apartments, located in northwest Portland, Oregon, is acknowledged by the National Register of Historic Places.
The Maud and Belle Ainsworth House is a historic house located in the Southwest Hills neighborhood of Portland, Oregon. It is listed on the National Register of Historic Places.
