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 Kimpton Hotel Vintage Portland, historically known as the Imperial Hotel and also as The Plaza Hotel, is a historic hotel building in downtown Portland, Oregon, United States. It was completed in 1894 and was listed on the National Register of Historic Places in 1985 as "Imperial Hotel". Since 2015, the building has been in use as the Kimpton Hotel Vintage Portland, and prior to then it had been known as the Hotel Vintage Plaza since 1991.
The David T. and Nan Wood Honeyman House is a house located in southwest Portland, Oregon, listed on the National Register of Historic Places.
The John S. Honeyman House is a house located in the West End area of downtown Portland, Oregon, listed on the National Register of Historic Places.
The Selling Building, also known as the Oregon National Building, is a building located in downtown Portland, Oregon, listed on the National Register of Historic Places. It was built in 1910 for Ben Selling & Associates, composed of Ben Selling and partners Charles Moore and Moses Blum.
The American Apartment Building is a building complex located in northwest Portland, Oregon, listed on the National Register of Historic Places.
The Bretnor Apartments is a building complex located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Campbell Hotel, located in northwest Portland, Oregon, is a historic former residential hotel that is listed on the National Register of Historic Places (NRHP). It is now an apartment building named the Campbell Court Apartments.
The Day Building is a building located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Dayton Apartment Building is a building located in northwest Portland, Oregon listed on the National Register of Historic Places.
The Oregon Cracker Company Building is a historic structure located in Portland, Oregon, United States. Built around 1897 as a food processing plant, and expanded in 1901, it is one of Portland's finest Romanesque Revival buildings. The building also includes early examples of structural features that were innovative for the time, but which later became common. The building was added to the National Register of Historic Places in 1979.
The Otis Elevator Company Building is a commercial building 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 Packard Service Building is a building 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 Pacific Hardware & Steel Company Warehouse is an industrial building located in Northwest Portland, Oregon designed by prominent architect John Virginius Bennes. The building is registered on the National Register for Historic Places.
The Portland Skidmore/Old Town Historic District is an historic district in Portland, Oregon's Old Town Chinatown neighborhood, in the United States. The approximately 20-block area, center around Burnside Street and named after the Skidmore Fountain, is known for exhibiting Italianate architecture, though High Victorian Italianate, Renaissance Revival, Richardsonian Romanesque, and Sullivanesque styles are also present. In addition to Skidmore Fountain, structures within the district's boundaries include the Blagen Block, Delschneider Building, Hallock and McMillin Building, New Market Theater, New Market Alley Building, New Market Annex, and Poppleton Building.
