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 Pittock Block is a historic building in downtown Portland, Oregon, occupying a city block between SW 9th and 10th Avenues, SW Stark and Washington Streets, and west of O'Bryant Square.
The Odd Fellows Building in downtown Portland, Oregon, was built in 1922–1924. It served historically as a clubhouse. It was listed on the National Register of Historic Places in 1980 for its architecture, which is Late Gothic Revival.
The Harlow Block, also known as the Hayhurst Building, is a historic building located in Portland, Oregon, United States, built in 1882. It is listed on the National Register of Historic Places.
The Nettie Krouse Fourplex in southeast Portland in the U.S. state of Oregon is a 2.5-story multiple dwelling listed on the National Register of Historic Places. Built in the American Craftsman style in 1910, it was added to the register in 1989.
West's Block is a building in southeast Portland, Oregon listed on the National Register of Historic Places.
The New Logus Block is a building complex in southeast Portland, Oregon, listed on the National Register of Historic Places.
The Elm Street Apartments is a building complex located in southwest Portland, Oregon listed on the National Register of Historic Places.
The Dr. Noble Wiley Jones House is a house located in the Goose Hollow neighborhood of southwest Portland, Oregon. Built in 1911, the house was listed on the National Register of Historic Places in 1988.
The Neighbors of Woodcraft Building, also known as the Tiffany Center, is a building located in southwest Portland, Oregon, listed on the National Register of Historic Places. Construction of the building was commissioned by the Neighbors of Woodcraft (NOW), a non-profit fraternal benefit society based in Oregon since 1905 and operating in several western states, for use as a national headquarters and clubhouse. The building was completed in May 1929 and dedicated in June. In 1993, NOW sold the building and moved out of its remaining office space there. The building was added to the National Register in February 1996.
The Roosevelt Hotel was a hotel located in downtown Portland, Oregon at 1005 SW Park. It was built in 1924 and is listed on the National Register of Historic Places. In 2000–2001 the building was converted to condominiums.
The Waldo Block, located in downtown Portland, Oregon, is 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 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 Davis Block, located in north Portland, Oregon, is 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 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.
